#781B37
Closest named color: Bordeaux (#7B002C). oklch(38.6% 0.128 7.8), rgb(120, 27, 55).
Aa
White text reads best on this color (10.44:1).
About this color
#781B37 is a dark, moderately saturated red. In OKLCH its lightness is 39%, its chroma 0.128 and its hue 8°. Its hue sits on the warm side of the wheel. The nearest named color is Bordeaux (#7B002C), ΔE 0.026 away. White text reads best on it, at 10.44:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.128) |
| Temperature | warm |
| Nearest name | Bordeaux (#7B002C) |
| Black text | 2.01:1 |
| White text | 10.44:1 |
Values
| HEX | #781B37 |
| RGB | rgb(120, 27, 55) |
| HSL | hsl(342, 63%, 29%) |
| OKLCH | oklch(38.6% 0.128 7.8) |
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 #781B37 | 10.44:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #781B37 | 2.01:1 | Fails | Lc 10.8 | Not readable |
| #781B37 text on white | 10.44:1 | AAA | Lc 93.1 | Preferred for body text |
| #781B37 text on black | 2.01:1 | Fails | Lc -9.4 | 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
#FEF2F4
oklch(97.1% 0.013 5.8)
-
Step 100
100
#FCE3E6
oklch(93.7% 0.028 9.4)
-
Step 200
200
#FACBD2
oklch(88.5% 0.054 8.2)
-
Step 300
300
#F7A7B5
oklch(81% 0.096 7.9)
-
Step 400
400
#EE738F
oklch(70.7% 0.153 7.5)
-
Step 500
500
#E54673
oklch(63.2% 0.196 7.9)
-
Step 600
600
#D0175C
oklch(55.7% 0.213 7.7)
-
Step 700
700
#B3004B
oklch(49.1% 0.197 8.1)
-
Step 800
800
#920C3E
oklch(42.8% 0.164 7.9)
-
Step 900
900 (this color)
#781B37
oklch(38.6% 0.128 7.8)
-
Step 950
950
#45101F
oklch(26.9% 0.082 7.4)
#781B37 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) | #323438 | 0.144 |
| Deuteranopia (no green cones) | #4B4635 | 0.129 |
| Tritanopia (no blue cones) | #830427 | 0.032 |
| Achromatopsia (no color) | #404040 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #781B37
#781B37
oklch(38.6% 0.128 7.8)
- #004F4B
#004F4B
oklch(38.6% 0.067 188.9)
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 #781B37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bordeaux #7B002C ΔE 0.026
- Wine Red #7B0323 ΔE 0.032
- Wine #80013F ΔE 0.033
- Merlot #730039 ΔE 0.036
- Red Purple #820747 ΔE 0.040
- Red Wine #8C0034 ΔE 0.043
- Velvet #750851 ΔE 0.057
- Maroon #800000 ΔE 0.059
Use #781B37 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.