#900B5D
Closest named color: Mulberry (#920A4E). oklch(43.5% 0.174 350.7), rgb(144, 11, 93).
Aa
White text reads best on this color (8.78:1).
About this color
#900B5D is a dark, vivid red. In OKLCH its lightness is 43%, its chroma 0.174 and its hue 351°. Its hue sits on the warm side of the wheel. The nearest named color is Mulberry (#920A4E), ΔE 0.026 away. White text reads best on it, at 8.78:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | vivid (0.174) |
| Temperature | warm |
| Nearest name | Mulberry (#920A4E) |
| Black text | 2.39:1 |
| White text | 8.78:1 |
Values
| HEX | #900B5D |
| RGB | rgb(144, 11, 93) |
| HSL | hsl(323, 86%, 30%) |
| OKLCH | oklch(43.5% 0.174 350.7) |
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 #900B5D | 8.78:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #900B5D | 2.39:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #900B5D text on white | 8.78:1 | AAA | Lc 88.2 | Fine for body text |
| #900B5D text on black | 2.39:1 | Fails | Lc -14.0 | 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 800.
-
Step 50
50
#FDF2F7
oklch(97.1% 0.013 347.9)
-
Step 100
100
#FAE2EC
oklch(93.5% 0.029 350.5)
-
Step 200
200
#F8CBDE
oklch(88.6% 0.056 351.1)
-
Step 300
300
#F3A5C9
oklch(80.8% 0.102 350.4)
-
Step 400
400
#E971AD
oklch(70.6% 0.162 350.8)
-
Step 500
500
#DF4399
oklch(63.1% 0.208 350.8)
-
Step 600
600
#CA0E84
oklch(55.6% 0.226 350.6)
-
Step 700
700
#AC006F
oklch(49% 0.204 350.6)
-
Step 800
800 (this color)
#900B5D
oklch(43.5% 0.174 350.7)
-
Step 900
900
#72164B
oklch(37.8% 0.135 350.5)
-
Step 950
950
#430F2C
oklch(26.9% 0.087 350.1)
#900B5D 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) | #2A3C5F | 0.199 |
| Deuteranopia (no green cones) | #50535A | 0.173 |
| Tritanopia (no blue cones) | #9C0036 | 0.068 |
| Achromatopsia (no color) | #4B4B4B | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #900B5D
#900B5D
oklch(43.5% 0.174 350.7)
- #00604A
#00604A
oklch(43.5% 0.086 170.2)
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 #900B5D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mulberry #920A4E ΔE 0.026
- Dark Fuchsia #9D0759 ΔE 0.029
- Red Violet #9E0168 ΔE 0.033
- Deep Magenta #A0025C ΔE 0.034
- Berry #990F4B ΔE 0.039
- Purple Red #990147 ΔE 0.041
- Red Purple #820747 ΔE 0.045
- Violet Red #A50055 ΔE 0.047
Use #900B5D 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.