#603407
Closest named color: Chestnut (#742802). oklch(37.3% 0.083 59.3), rgb(96, 52, 7).
Aa
White text reads best on this color (10.54:1).
About this color
#603407 is a dark, moderately saturated brown. In OKLCH its lightness is 37%, its chroma 0.083 and its hue 59°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.046 away. White text reads best on it, at 10.54:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.083) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 1.99:1 |
| White text | 10.54:1 |
Values
| HEX | #603407 |
| RGB | rgb(96, 52, 7) |
| HSL | hsl(30, 86%, 20%) |
| OKLCH | oklch(37.3% 0.083 59.3) |
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 #603407 | 10.54:1 | AAA | Lc -98.1 | Preferred for body text |
| Black text on #603407 | 1.99:1 | Fails | Lc 9.8 | Not readable |
| #603407 text on white | 10.54:1 | AAA | Lc 94.1 | Preferred for body text |
| #603407 text on black | 1.99:1 | Fails | Lc -8.4 | 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
#FAF4F0
oklch(97.1% 0.008 56.3)
-
Step 100
100
#F3E7DE
oklch(93.5% 0.018 59.5)
-
Step 200
200
#EBD4C3
oklch(88.4% 0.034 58.8)
-
Step 300
300
#E0B899
oklch(81% 0.062 59.5)
-
Step 400
400
#CF915F
oklch(70.7% 0.1 59.1)
-
Step 500
500
#C1742D
oklch(63.1% 0.128 59.2)
-
Step 600
600
#AA5D00
oklch(55.7% 0.131 59.4)
-
Step 700
700
#8F4D00
oklch(49% 0.116 59.2)
-
Step 800
800
#763F00
oklch(42.7% 0.101 59.7)
-
Step 900
900 (this color)
#603407
oklch(37.3% 0.083 59.3)
-
Step 950
950
#391F08
oklch(26.9% 0.053 58.8)
#603407 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) | #413900 | 0.064 |
| Deuteranopia (no green cones) | #4C4307 | 0.056 |
| Tritanopia (no blue cones) | #6A2A2C | 0.059 |
| Achromatopsia (no color) | #3F3F3F | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #603407
#603407
oklch(37.3% 0.083 59.3)
- #034568
#034568
oklch(37.3% 0.084 240.2)
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 #603407, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.046
- Mud Brown #60460F ΔE 0.050
- Purple Brown #673A3F ΔE 0.068
- Reddy Brown #6E1005 ΔE 0.073
- Green Brown #544E03 ΔE 0.078
- Dark Olive #373E02 ΔE 0.082
- Blood #770001 ΔE 0.087
- Rust Brown #8B3103 ΔE 0.088
Use #603407 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.