#642723
Closest named color: Reddy Brown (#6E1005). oklch(36% 0.089 26.3), rgb(100, 39, 35).
Aa
White text reads best on this color (11.31:1).
About this color
#642723 is a dark, moderately saturated red. In OKLCH its lightness is 36%, its chroma 0.089 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.042 away. White text reads best on it, at 11.31:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.089) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.85:1 |
| White text | 11.31:1 |
Values
| HEX | #642723 |
| RGB | rgb(100, 39, 35) |
| HSL | hsl(4, 48%, 26%) |
| OKLCH | oklch(36% 0.089 26.3) |
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 #642723 | 11.31:1 | AAA | Lc -99.4 | Preferred for body text |
| Black text on #642723 | 1.85:1 | Fails | Lc 8.3 | Not readable |
| #642723 text on white | 11.31:1 | AAA | Lc 95.6 | Preferred for body text |
| #642723 text on black | 1.85:1 | 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
#FBF3F2
oklch(97% 0.009 26)
-
Step 100
100
#F7E5E3
oklch(93.6% 0.02 25.2)
-
Step 200
200
#F1D0CC
oklch(88.4% 0.038 26.1)
-
Step 300
300
#E9B1AA
oklch(81% 0.067 26.8)
-
Step 400
400
#DB867D
oklch(70.7% 0.106 26.6)
-
Step 500
500
#CF645C
oklch(63% 0.137 26.1)
-
Step 600
600
#BB4942
oklch(55.7% 0.149 26.5)
-
Step 700
700
#A03934
oklch(49% 0.138 26.2)
-
Step 800
800
#82302B
oklch(42.6% 0.114 26.5)
-
Step 900
900 (this color)
#642723
oklch(36% 0.089 26.3)
-
Step 950
950
#3E1A17
oklch(27% 0.057 26.4)
#642723 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) | #363222 | 0.095 |
| Deuteranopia (no green cones) | #463F22 | 0.086 |
| Tritanopia (no blue cones) | #6E1C26 | 0.029 |
| Achromatopsia (no color) | #3A3A3A | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642723
#642723
oklch(36% 0.089 26.3)
- #00464D
#00464D
oklch(36% 0.062 206.2)
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 #642723, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.042
- Chestnut #742802 ΔE 0.046
- Purple Brown #673A3F ΔE 0.054
- Claret #680018 ΔE 0.055
- Blood #770001 ΔE 0.058
- Wine Red #7B0323 ΔE 0.061
- Burgundy #610023 ΔE 0.066
- Maroon #800000 ΔE 0.068
Use #642723 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.