#623D37
Closest named color: Purple Brown (#673A3F). oklch(40.2% 0.054 29.7), rgb(98, 61, 55).
Aa
White text reads best on this color (9.36:1).
About this color
#623D37 is a dark, muted red. In OKLCH its lightness is 40%, its chroma 0.054 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.020 away. White text reads best on it, at 9.36:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | muted (0.054) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.24:1 |
| White text | 9.36:1 |
Values
| HEX | #623D37 |
| RGB | rgb(98, 61, 55) |
| HSL | hsl(8, 28%, 30%) |
| OKLCH | oklch(40.2% 0.054 29.7) |
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 #623D37 | 9.36:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #623D37 | 2.24:1 | Fails | Lc 12.5 | Not readable |
| #623D37 text on white | 9.36:1 | AAA | Lc 91.5 | Preferred for body text |
| #623D37 text on black | 2.24:1 | Fails | Lc -10.9 | 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
#F9F4F3
oklch(97.1% 0.006 31.1)
-
Step 100
100
#F2E7E5
oklch(93.6% 0.012 29.9)
-
Step 200
200
#E8D4D1
oklch(88.5% 0.023 27.8)
-
Step 300
300
#D9B8B2
oklch(81% 0.039 30.1)
-
Step 400
400
#C69289
oklch(70.7% 0.065 29.9)
-
Step 500
500
#B6766C
oklch(63% 0.083 29.3)
-
Step 600
600
#A15E54
oklch(55.5% 0.09 29.3)
-
Step 700
700
#8A4E44
oklch(49.2% 0.083 30.4)
-
Step 800
800
#704038
oklch(42.7% 0.069 30.3)
-
Step 900
900 (this color)
#623D37
oklch(40.2% 0.054 29.7)
-
Step 950
950
#35201D
oklch(27% 0.033 28.4)
#623D37 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) | #454236 | 0.054 |
| Deuteranopia (no green cones) | #4E4937 | 0.049 |
| Tritanopia (no blue cones) | #6A383B | 0.022 |
| Achromatopsia (no color) | #464646 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #623D37
#623D37
oklch(40.2% 0.054 29.7)
- #1F5058
#1F5058
oklch(40.2% 0.054 209.8)
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 #623D37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.020
- Brownish Purple #76424E ΔE 0.055
- Mud Brown #60460F ΔE 0.062
- Chestnut #742802 ΔE 0.066
- Charcoal Grey #3C4142 ΔE 0.068
- Red Brown #8B2E16 ΔE 0.086
- Onyx #343A40 ΔE 0.086
- Milk Chocolate #7F4E1E ΔE 0.087
Use #623D37 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.