#623403
Closest named color: Chestnut (#742802). oklch(37.6% 0.087 59.4), rgb(98, 52, 3).
Aa
White text reads best on this color (10.43:1).
About this color
#623403 is a dark, moderately saturated brown. In OKLCH its lightness is 38%, its chroma 0.087 and its hue 59°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.043 away. White text reads best on it, at 10.43:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.087) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 2.01:1 |
| White text | 10.43:1 |
Values
| HEX | #623403 |
| RGB | rgb(98, 52, 3) |
| HSL | hsl(31, 94%, 20%) |
| OKLCH | oklch(37.6% 0.087 59.4) |
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 #623403 | 10.43:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #623403 | 2.01:1 | Fails | Lc 10.1 | Not readable |
| #623403 text on white | 10.43:1 | AAA | Lc 93.8 | Preferred for body text |
| #623403 text on black | 2.01:1 | Fails | Lc -8.7 | 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
#F4E7DE
oklch(93.6% 0.019 57.2)
-
Step 200
200
#ECD4C2
oklch(88.5% 0.036 59.2)
-
Step 300
300
#E1B797
oklch(80.9% 0.065 59)
-
Step 400
400
#D0905C
oklch(70.6% 0.103 59.1)
-
Step 500
500
#C37326
oklch(63.1% 0.133 59.4)
-
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)
#623403
oklch(37.6% 0.087 59.4)
-
Step 950
950
#3A1F07
oklch(27.1% 0.055 58.7)
#623403 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 | 0.065 |
| Deuteranopia (no green cones) | #4D4403 | 0.059 |
| Tritanopia (no blue cones) | #6C292B | 0.061 |
| Achromatopsia (no color) | #404040 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #623403
#623403
oklch(37.6% 0.087 59.4)
- #004669
#004669
oklch(37.5% 0.085 239.3)
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 #623403, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.043
- Mud Brown #60460F ΔE 0.049
- Purple Brown #673A3F ΔE 0.069
- Reddy Brown #6E1005 ΔE 0.073
- Green Brown #544E03 ΔE 0.078
- Rust Brown #8B3103 ΔE 0.085
- Dark Olive #373E02 ΔE 0.085
- Blood #770001 ΔE 0.086
Use #623403 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.