#42510A
Closest named color: Navy Green (#35530A). oklch(40.8% 0.093 121.6), rgb(66, 81, 10).
Aa
White text reads best on this color (8.70:1).
About this color
#42510A is a dark, moderately saturated brown. In OKLCH its lightness is 41%, its chroma 0.093 and its hue 122°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Navy Green (#35530A), ΔE 0.018 away. White text reads best on it, at 8.70:1.
| Hue family | Browns |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.093) |
| Temperature | in between |
| Nearest name | Navy Green (#35530A) |
| Black text | 2.41:1 |
| White text | 8.70:1 |
Values
| HEX | #42510A |
| RGB | rgb(66, 81, 10) |
| HSL | hsl(73, 78%, 18%) |
| OKLCH | oklch(40.8% 0.093 121.6) |
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 #42510A | 8.70:1 | AAA | Lc -94.2 | Preferred for body text |
| Black text on #42510A | 2.41:1 | Fails | Lc 14.3 | Not readable |
| #42510A text on white | 8.70:1 | AAA | Lc 89.7 | Fine for body text |
| #42510A text on black | 2.41:1 | Fails | Lc -12.5 | Not readable |
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 800.
-
Step 50
50
#F4F6F1
oklch(97% 0.007 124.4)
-
Step 100
100
#E8ECE0
oklch(93.7% 0.017 121.8)
-
Step 200
200
#D6DDC7
oklch(88.6% 0.03 121.4)
-
Step 300
300
#BBC7A0
oklch(81% 0.055 121.5)
-
Step 400
400
#98A96C
oklch(70.7% 0.085 121.3)
-
Step 500
500
#7F9442
oklch(63.2% 0.111 121.6)
-
Step 600
600
#687E1F
oklch(55.7% 0.121 121.9)
-
Step 700
700
#576A10
oklch(49.2% 0.112 121.6)
-
Step 800
800 (this color)
#42510A
oklch(40.8% 0.093 121.6)
-
Step 900
900
#3B4717
oklch(37.6% 0.072 121.8)
-
Step 950
950
#232A0F
oklch(27.1% 0.046 121.6)
#42510A 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) | #574B00 | 0.036 |
| Deuteranopia (no green cones) | #554B12 | 0.037 |
| Tritanopia (no blue cones) | #464C44 | 0.078 |
| Achromatopsia (no color) | #4B4B4B | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42510A
#42510A
oklch(40.8% 0.093 121.6)
- #533C73
#533C73
oklch(40.7% 0.092 301.7)
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 #42510A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Green #35530A ΔE 0.018
- Green Brown #544E03 ΔE 0.029
- Army Green #4B5D16 ΔE 0.041
- Pine #2B5D34 ΔE 0.048
- Camouflage Green #4B6113 ΔE 0.052
- Forest #0B5509 ΔE 0.053
- Deep Green #02590F ΔE 0.056
- Olive Brown #645403 ΔE 0.058
Use #42510A 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.