#42570B
Closest named color: Navy Green (#35530A). oklch(42.4% 0.1 124.8), rgb(66, 87, 11).
Aa
White text reads best on this color (8.07:1).
About this color
#42570B is a dark, moderately saturated yellow. In OKLCH its lightness is 42%, its chroma 0.100 and its hue 125°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Navy Green (#35530A), ΔE 0.023 away. White text reads best on it, at 8.07:1.
| Hue family | Yellows |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.100) |
| Temperature | in between |
| Nearest name | Navy Green (#35530A) |
| Black text | 2.59:1 |
| White text | 8.07:1 |
Values
| HEX | #42570B |
| RGB | rgb(66, 87, 11) |
| HSL | hsl(77, 78%, 19%) |
| OKLCH | oklch(42.4% 0.1 124.8) |
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 #42570B | 8.07:1 | AAA | Lc -92.5 | Preferred for body text |
| Black text on #42570B | 2.59:1 | Fails | Lc 16.2 | Dividers and decoration only |
| #42570B text on white | 8.07:1 | AAA | Lc 87.8 | Fine for body text |
| #42570B text on black | 2.59:1 | Fails | Lc -14.3 | 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
#E7ECE0
oklch(93.6% 0.017 125.3)
-
Step 200
200
#D4DDC6
oklch(88.4% 0.032 124.5)
-
Step 300
300
#B8C89F
oklch(81% 0.058 125)
-
Step 400
400
#93AB69
oklch(70.7% 0.094 125)
-
Step 500
500
#79963E
oklch(63.2% 0.12 125)
-
Step 600
600
#628017
oklch(55.7% 0.131 125.1)
-
Step 700
700
#516C05
oklch(49.2% 0.122 125.1)
-
Step 800
800 (this color)
#42570B
oklch(42.4% 0.1 124.8)
-
Step 900
900
#384814
oklch(37.6% 0.078 124.7)
-
Step 950
950
#212A0E
oklch(26.9% 0.048 124.4)
#42570B 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) | #5C5100 | 0.042 |
| Deuteranopia (no green cones) | #5A5013 | 0.044 |
| Tritanopia (no blue cones) | #465249 | 0.082 |
| Achromatopsia (no color) | #505050 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42570B
#42570B
oklch(42.4% 0.1 124.8)
- #5B3E7A
#5B3E7A
oklch(42.4% 0.101 304.8)
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 #42570B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Green #35530A ΔE 0.023
- Army Green #4B5D16 ΔE 0.024
- Camouflage Green #4B6113 ΔE 0.035
- Green Brown #544E03 ΔE 0.036
- Pine #2B5D34 ΔE 0.040
- Deep Green #02590F ΔE 0.052
- Camo Green #526525 ΔE 0.053
- Forest #0B5509 ΔE 0.054
Use #42570B 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.