#621F23
Closest named color: Reddy Brown (#6E1005). oklch(34.5% 0.097 20.4), rgb(98, 31, 35).
Aa
White text reads best on this color (12.07:1).
About this color
#621F23 is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.097 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.038 away. White text reads best on it, at 12.07:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.097) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.73:1 |
| White text | 12.07:1 |
Values
| HEX | #621F23 |
| RGB | rgb(98, 31, 35) |
| HSL | hsl(356, 52%, 25%) |
| OKLCH | oklch(34.5% 0.097 20.4) |
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 #621F23 | 12.07:1 | AAA | Lc -100.5 | Preferred for body text |
| Black text on #621F23 | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #621F23 text on white | 12.07:1 | AAA | Lc 96.9 | Preferred for body text |
| #621F23 text on black | 1.73:1 | 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
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F8E5E4
oklch(93.7% 0.021 21.2)
-
Step 200
200
#F3CFCE
oklch(88.5% 0.041 19.8)
-
Step 300
300
#ECAEAD
oklch(80.8% 0.073 19.8)
-
Step 400
400
#E08282
oklch(70.8% 0.116 20.4)
-
Step 500
500
#D45F62
oklch(63.1% 0.148 20.7)
-
Step 600
600
#C04149
oklch(55.7% 0.162 20.6)
-
Step 700
700
#A5323B
oklch(49.2% 0.15 20.3)
-
Step 800
800
#862B31
oklch(42.8% 0.124 20.4)
-
Step 900
900 (this color)
#621F23
oklch(34.5% 0.097 20.4)
-
Step 950
950
#401819
oklch(27% 0.063 20.7)
#621F23 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) | #302D23 | 0.105 |
| Deuteranopia (no green cones) | #413B21 | 0.096 |
| Tritanopia (no blue cones) | #6C1121 | 0.027 |
| Achromatopsia (no color) | #363636 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #621F23
#621F23
oklch(34.5% 0.097 20.4)
- #004245
#004245
oklch(34.5% 0.059 199.9)
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 #621F23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.038
- Claret #680018 ΔE 0.039
- Burgundy #610023 ΔE 0.047
- Blood #770001 ΔE 0.054
- Wine Red #7B0323 ΔE 0.057
- Chestnut #742802 ΔE 0.060
- Bordeaux #7B002C ΔE 0.061
- Merlot #730039 ΔE 0.065
Use #621F23 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.