#603318
Closest named color: Chestnut (#742802). oklch(37.3% 0.076 49.6), rgb(96, 51, 24).
Aa
White text reads best on this color (10.58:1).
About this color
#603318 is a dark, moderately saturated brown. In OKLCH its lightness is 37%, its chroma 0.076 and its hue 50°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.044 away. White text reads best on it, at 10.58:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.076) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 1.98:1 |
| White text | 10.58:1 |
Values
| HEX | #603318 |
| RGB | rgb(96, 51, 24) |
| HSL | hsl(23, 60%, 24%) |
| OKLCH | oklch(37.3% 0.076 49.6) |
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 #603318 | 10.58:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #603318 | 1.98:1 | Fails | Lc 9.7 | Not readable |
| #603318 text on white | 10.58:1 | AAA | Lc 94.3 | Preferred for body text |
| #603318 text on black | 1.98:1 | Fails | Lc -8.3 | 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 900.
-
Step 50
50
#FAF4F1
oklch(97.1% 0.008 48.7)
-
Step 100
100
#F4E7E0
oklch(93.6% 0.017 50.4)
-
Step 200
200
#EBD4C7
oklch(88.5% 0.031 51.5)
-
Step 300
300
#E0B7A0
oklch(81% 0.057 50.9)
-
Step 400
400
#CF906D
oklch(70.8% 0.091 49.8)
-
Step 500
500
#C17345
oklch(63.2% 0.116 50)
-
Step 600
600
#AD5924
oklch(55.6% 0.127 49.3)
-
Step 700
700
#944916
oklch(49.1% 0.118 49.9)
-
Step 800
800
#783C16
oklch(42.6% 0.097 49.4)
-
Step 900
900 (this color)
#603318
oklch(37.3% 0.076 49.6)
-
Step 950
950
#391F10
oklch(27% 0.048 49.7)
#603318 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) | #403915 | 0.065 |
| Deuteranopia (no green cones) | #4A4318 | 0.061 |
| Tritanopia (no blue cones) | #692A2D | 0.045 |
| Achromatopsia (no color) | #3F3F3F | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #603318
#603318
oklch(37.3% 0.076 49.6)
- #004760
#004760
oklch(37.3% 0.074 230.1)
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 #603318, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.044
- Purple Brown #673A3F ΔE 0.055
- Mud Brown #60460F ΔE 0.057
- Reddy Brown #6E1005 ΔE 0.067
- Blood #770001 ΔE 0.082
- Charcoal Grey #3C4142 ΔE 0.082
- Green Brown #544E03 ΔE 0.087
- Maroon #800000 ΔE 0.088
Use #603318 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.