#403704
Closest named color: Dark Olive (#373E02). oklch(33.6% 0.067 98.4), rgb(64, 55, 4).
Aa
White text reads best on this color (11.88:1).
About this color
#403704 is a dark, muted brown. In OKLCH its lightness is 34%, its chroma 0.067 and its hue 98°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.027 away. White text reads best on it, at 11.88:1.
| Hue family | Browns |
| Lightness | dark (34%) |
| Chroma | muted (0.067) |
| Temperature | warm |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.76:1 |
| White text | 11.88:1 |
Values
| HEX | #403704 |
| RGB | rgb(64, 55, 4) |
| HSL | hsl(51, 88%, 13%) |
| OKLCH | oklch(33.6% 0.067 98.4) |
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 #403704 | 11.88:1 | AAA | Lc -100.7 | Preferred for body text |
| Black text on #403704 | 1.76:1 | Fails | Lc 0.0 | Not readable |
| #403704 text on white | 11.88:1 | AAA | Lc 97.1 | Preferred for body text |
| #403704 text on black | 1.76:1 | 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
#F6F6F1
oklch(97.2% 0.007 106.5)
-
Step 100
100
#ECEADF
oklch(93.6% 0.015 98.3)
-
Step 200
200
#DDDAC5
oklch(88.5% 0.028 100.3)
-
Step 300
300
#C9C29D
oklch(81% 0.05 98.5)
-
Step 400
400
#ADA266
oklch(70.8% 0.081 99.1)
-
Step 500
500
#998A3A
oklch(63.1% 0.102 98.7)
-
Step 600
600
#84730E
oklch(55.5% 0.111 98.4)
-
Step 700
700
#706100
oklch(49.2% 0.102 98.7)
-
Step 800
800
#5B4F06
oklch(42.7% 0.086 98.7)
-
Step 900
900 (this color)
#403704
oklch(33.6% 0.067 98.4)
-
Step 950
950
#2C270C
oklch(27.1% 0.043 98.9)
#403704 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) | #3E3500 | 0.008 |
| Deuteranopia (no green cones) | #403807 | 0.003 |
| Tritanopia (no blue cones) | #46322E | 0.061 |
| Achromatopsia (no color) | #373737 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403704
#403704
oklch(33.6% 0.067 98.4)
- #2F3359
#2F3359
oklch(33.7% 0.067 277.6)
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 #403704, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.027
- Pakistan Green #283618 ΔE 0.042
- Forrest Green #154406 ΔE 0.068
- Hunter Green #0B4008 ΔE 0.070
- Pine Green #0A481E ΔE 0.074
- Evergreen #05472A ΔE 0.075
- Charcoal Grey #3C4142 ΔE 0.078
- Onyx #343A40 ΔE 0.079
Use #403704 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.