#840510
Closest named color: Maroon (#800000). oklch(38.9% 0.154 26), rgb(132, 5, 16).
Aa
White text reads best on this color (10.44:1).
About this color
#840510 is a dark, vivid red. In OKLCH its lightness is 39%, its chroma 0.154 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Maroon (#800000), ΔE 0.015 away. White text reads best on it, at 10.44:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | vivid (0.154) |
| Temperature | warm |
| Nearest name | Maroon (#800000) |
| Black text | 2.01:1 |
| White text | 10.44:1 |
Values
| HEX | #840510 |
| RGB | rgb(132, 5, 16) |
| HSL | hsl(355, 93%, 27%) |
| OKLCH | oklch(38.9% 0.154 26) |
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 #840510 | 10.44:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #840510 | 2.01:1 | Fails | Lc 11.9 | Not readable |
| #840510 text on white | 10.44:1 | AAA | Lc 92.1 | Preferred for body text |
| #840510 text on black | 2.01:1 | Fails | Lc -10.3 | 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
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FFE2DF
oklch(93.6% 0.032 24.8)
-
Step 200
200
#FFCBC4
oklch(88.6% 0.06 27.2)
-
Step 300
300
#FFA59C
oklch(80.9% 0.108 25.9)
-
Step 400
400
#FF6961
oklch(70.7% 0.185 25.9)
-
Step 500
500
#F82932
oklch(63% 0.237 25.9)
-
Step 600
600
#D8001E
oklch(55.5% 0.226 25.9)
-
Step 700
700
#B70017
oklch(49.1% 0.199 26.1)
-
Step 800
800
#980011
oklch(42.8% 0.174 26.1)
-
Step 900
900 (this color)
#840510
oklch(38.9% 0.154 26)
-
Step 950
950
#4C080A
oklch(27.1% 0.098 25.6)
#840510 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) | #352F0E | 0.170 |
| Deuteranopia (no green cones) | #524908 | 0.155 |
| Tritanopia (no blue cones) | #92000C | 0.030 |
| Achromatopsia (no color) | #404040 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #840510
#840510
oklch(38.9% 0.154 26)
- #004E56
#004E56
oklch(38.7% 0.066 206.6)
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 #840510, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Maroon #800000 ΔE 0.015
- Dark Red #8B0000 ΔE 0.017
- Wine Red #7B0323 ΔE 0.031
- Brick Red #8F1402 ΔE 0.033
- Blood #770001 ΔE 0.033
- Bordeaux #7B002C ΔE 0.043
- Blood Red #980002 ΔE 0.044
- Red Wine #8C0034 ΔE 0.048
Use #840510 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.