#51761B
Closest named color: Olive Green (#677A04). oklch(51.9% 0.124 129.5), rgb(81, 118, 27).
Aa
White text reads best on this color (5.30:1).
About this color
#51761B is a medium-dark, moderately saturated green. In OKLCH its lightness is 52%, its chroma 0.124 and its hue 130°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Olive Green (#677A04), ΔE 0.033 away. White text reads best on it, at 5.30:1.
| Hue family | Greens |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.124) |
| Temperature | in between |
| Nearest name | Olive Green (#677A04) |
| Black text | 3.95:1 |
| White text | 5.30:1 |
Values
| HEX | #51761B |
| RGB | rgb(81, 118, 27) |
| HSL | hsl(84, 63%, 28%) |
| OKLCH | oklch(51.9% 0.124 129.5) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #51761B | 5.30:1 | AA | Lc -81.6 | Fine for body text |
| Black text on #51761B | 3.95:1 | AA large text | Lc 27.8 | Dividers and decoration only |
| #51761B text on white | 5.30:1 | AA | Lc 76.2 | Fine for body text |
| #51761B text on black | 3.95:1 | AA large text | Lc -25.5 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 700.
-
Step 50
50
#F4F7F1
oklch(97.2% 0.009 128.6)
-
Step 100
100
#E6ECE0
oklch(93.5% 0.017 128.7)
-
Step 200
200
#D2DEC7
oklch(88.5% 0.034 129.7)
-
Step 300
300
#B4C9A0
oklch(80.9% 0.06 129.8)
-
Step 400
400
#8DAD6B
oklch(70.7% 0.097 129.6)
-
Step 500
500
#719842
oklch(63.2% 0.123 129.7)
-
Step 600
600
#59821E
oklch(55.6% 0.134 129.7)
-
Step 700
700 (this color)
#51761B
oklch(51.9% 0.124 129.5)
-
Step 800
800
#3C5911
oklch(42.6% 0.103 129.5)
-
Step 900
900
#344A17
oklch(37.8% 0.08 129.4)
-
Step 950
950
#1E2B0F
oklch(26.9% 0.05 129.8)
#51761B with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #7C6D08 | 0.064 |
| Deuteranopia (no green cones) | #776A24 | 0.066 |
| Tritanopia (no blue cones) | #537165 | 0.097 |
| Achromatopsia (no color) | #6B6B6B | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51761B
#51761B
oklch(51.9% 0.124 129.5)
- #7E529E
#7E529E
oklch(51.9% 0.124 309.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #51761B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Green #677A04 ΔE 0.033
- Muddy Green #657432 ΔE 0.038
- Murky Green #6C7A0E ΔE 0.039
- Tree Green #2A7E19 ΔE 0.042
- Dark Grass Green #388004 ΔE 0.042
- Dark Olive Green #556B2F ΔE 0.043
- Browny Green #6F6C0A ΔE 0.047
- Mud Green #606602 ΔE 0.047
Use #51761B in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.