#642137
Closest named color: Merlot (#730039). oklch(35.7% 0.099 3.2), rgb(100, 33, 55).
Aa
White text reads best on this color (11.57:1).
About this color
#642137 is a dark, moderately saturated red. In OKLCH its lightness is 36%, its chroma 0.099 and its hue 3°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.047 away. White text reads best on it, at 11.57:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.099) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.81:1 |
| White text | 11.57:1 |
Values
| HEX | #642137 |
| RGB | rgb(100, 33, 55) |
| HSL | hsl(340, 50%, 26%) |
| OKLCH | oklch(35.7% 0.099 3.2) |
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 #642137 | 11.57:1 | AAA | Lc -99.7 | Preferred for body text |
| Black text on #642137 | 1.81:1 | Fails | Lc 7.9 | Not readable |
| #642137 text on white | 11.57:1 | AAA | Lc 96.0 | Preferred for body text |
| #642137 text on black | 1.81:1 | 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
#FCF3F5
oklch(97.2% 0.01 2)
-
Step 100
100
#F7E4E8
oklch(93.5% 0.021 3.1)
-
Step 200
200
#F2CED6
oklch(88.4% 0.042 3)
-
Step 300
300
#EBADBC
oklch(80.9% 0.075 2.9)
-
Step 400
400
#DD8099
oklch(70.7% 0.118 3.3)
-
Step 500
500
#D15C80
oklch(63% 0.152 3.2)
-
Step 600
600
#BC3E69
oklch(55.5% 0.165 3.3)
-
Step 700
700
#A22F58
oklch(49.1% 0.154 3)
-
Step 800
800
#842948
oklch(42.8% 0.127 3.3)
-
Step 900
900 (this color)
#642137
oklch(35.7% 0.099 3.2)
-
Step 950
950
#3F1723
oklch(27% 0.064 3.5)
#642137 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) | #2E3138 | 0.110 |
| Deuteranopia (no green cones) | #403E35 | 0.101 |
| Tritanopia (no blue cones) | #6D192A | 0.027 |
| Achromatopsia (no color) | #393939 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642137
#642137
oklch(35.7% 0.099 3.2)
- #004740
#004740
oklch(35.7% 0.063 183.8)
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 #642137, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.047
- Burgundy #610023 ΔE 0.051
- Claret #680018 ΔE 0.053
- Bordeaux #7B002C ΔE 0.055
- Wine Red #7B0323 ΔE 0.057
- Purple Brown #673A3F ΔE 0.061
- Reddy Brown #6E1005 ΔE 0.062
- Grape Purple #5D1451 ΔE 0.062
Use #642137 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.