#423B03
Closest named color: Dark Olive (#373E02). oklch(34.9% 0.071 101.6), rgb(66, 59, 3).
Aa
White text reads best on this color (11.29:1).
About this color
#423B03 is a dark, moderately saturated brown. In OKLCH its lightness is 35%, its chroma 0.071 and its hue 102°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.021 away. White text reads best on it, at 11.29:1.
| Hue family | Browns |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.071) |
| Temperature | warm |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.85:1 |
| White text | 11.29:1 |
Values
| HEX | #423B03 |
| RGB | rgb(66, 59, 3) |
| HSL | hsl(53, 91%, 14%) |
| OKLCH | oklch(34.9% 0.071 101.6) |
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 #423B03 | 11.29:1 | AAA | Lc -99.7 | Preferred for body text |
| Black text on #423B03 | 1.85:1 | Fails | Lc 7.9 | Not readable |
| #423B03 text on white | 11.29:1 | AAA | Lc 96.0 | Preferred for body text |
| #423B03 text on black | 1.85:1 | Fails | Lc 0.0 | 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 900.
-
Step 50
50
#F6F6F0
oklch(97.1% 0.008 106.5)
-
Step 100
100
#ECEADF
oklch(93.6% 0.015 98.3)
-
Step 200
200
#DDDAC4
oklch(88.5% 0.03 100.6)
-
Step 300
300
#C7C29B
oklch(80.8% 0.053 101.4)
-
Step 400
400
#ABA363
oklch(70.7% 0.085 102.1)
-
Step 500
500
#978B34
oklch(63% 0.108 101.4)
-
Step 600
600
#827500
oklch(55.7% 0.116 101.7)
-
Step 700
700
#6D6200
oklch(49.1% 0.103 101.8)
-
Step 800
800
#595000
oklch(42.7% 0.089 102)
-
Step 900
900 (this color)
#423B03
oklch(34.9% 0.071 101.6)
-
Step 950
950
#2B270A
oklch(27% 0.045 101.5)
#423B03 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) | #423900 | 0.006 |
| Deuteranopia (no green cones) | #443C07 | 0.006 |
| Tritanopia (no blue cones) | #483631 | 0.065 |
| Achromatopsia (no color) | #3A3A3A | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #423B03
#423B03
oklch(34.9% 0.071 101.6)
- #34355E
#34355E
oklch(34.9% 0.071 281)
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 #423B03, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.021
- Pakistan Green #283618 ΔE 0.051
- Forrest Green #154406 ΔE 0.064
- Pine Green #0A481E ΔE 0.069
- Mud Brown #60460F ΔE 0.069
- Hunter Green #0B4008 ΔE 0.069
- Green Brown #544E03 ΔE 0.070
- Evergreen #05472A ΔE 0.071
Use #423B03 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.