RAL Effect

RAL 660-5

Deep Holly

RAL 660-5 Deep Holly is a dark holly green with muted laurel undertones from the RAL Effect 660 group. This commanding tone conveys depth and evergreen permanence, making it well suited for structural steelwork, facade accent panels, and premium furniture finishes. Its festive richness pairs effectively with gold, burgundy, and natural stone palettes.

Time9:36 AM
Light
Technical Reference

Color Reference

Hex#308048
RGBrgb(48, 128, 72)
HSLhsl(138°, 45%, 35%)
CMYKcmyk(63%, 0%, 44%, 50%)
RAL Effect Variant

RAL Effect colors combine a base shade with a metallic or pearl variant. Base shades (-1 through -6) offer tonal gradation within a color family. The -M suffix indicates a metallic finish with shimmer and depth for architectural and automotive applications.

Color Analysis
RGB Composition
R
48
G
128
B
72
Temperature
WarmCool
Contrast Accessibility
White text
4.9:1Pass
Black text
4.3:1Fail

WCAG 2.1 AA requires 4.5:1 contrast for normal text. Results show this color as a background.

Spectrum & Perceptual Position

Hue Spectrum
60°120°180°240°300°360°
CIELAB a*b* Chromaticity
-40-2002040-200204060a* (Green ← → Red)b* (Blue ← → Yellow)
L* (Lightness)48
a* (Green-Red)-38
b* (Blue-Yellow)23
L* (LCh)48
C* (Chroma)44
h° (Hue)148°

CIELAB is a perceptually uniform color space. Euclidean distance between two colors in this diagram closely matches human visual difference. The dot size shows your selected color; slightly larger dots are the nearest perceptual neighbors.

Color Harmonies

Build a Palette Around Deep Holly

Palette Generator

Select a harmony type, then press Space to reroll unlocked colors.

1 locked / 4 free

Reference + opposite hue with tonal variations

Reference
#2
Complementary
#3
Complementary
#4
Complementary
#5
Split Comp +
Pairwise Contrast Ratios
1.7:1
·
1.1:1
·
1.8:1
·
2.1:1

Contrast ratios follow WCAG 2.1 guidelines. Green (≥4.5:1) passes AA for normal text. Amber (≥3:1) passes for large text only. Grey indicates low contrast.

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