#900858
Closest named color: Mulberry (#920A4E). oklch(43.1% 0.173 353.1), rgb(144, 8, 88).
Aa
White text reads best on this color (8.89:1).
About this color
#900858 is a dark, vivid red. In OKLCH its lightness is 43%, its chroma 0.173 and its hue 353°. Its hue sits on the warm side of the wheel. The nearest named color is Mulberry (#920A4E), ΔE 0.018 away. White text reads best on it, at 8.89:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | vivid (0.173) |
| Temperature | warm |
| Nearest name | Mulberry (#920A4E) |
| Black text | 2.36:1 |
| White text | 8.89:1 |
Values
| HEX | #900858 |
| RGB | rgb(144, 8, 88) |
| HSL | hsl(325, 89%, 30%) |
| OKLCH | oklch(43.1% 0.173 353.1) |
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 #900858 | 8.89:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #900858 | 2.36:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #900858 text on white | 8.89:1 | AAA | Lc 88.4 | Fine for body text |
| #900858 text on black | 2.36:1 | Fails | Lc -13.8 | 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
#FDF2F6
oklch(97.1% 0.013 353.1)
-
Step 100
100
#FBE2EB
oklch(93.6% 0.03 353.9)
-
Step 200
200
#F8CADC
oklch(88.4% 0.057 352.9)
-
Step 300
300
#F4A5C6
oklch(80.8% 0.101 352.9)
-
Step 400
400
#EB71A9
oklch(70.8% 0.162 353.2)
-
Step 500
500
#E04294
oklch(63% 0.207 352.9)
-
Step 600
600
#CC0C7E
oklch(55.7% 0.225 353.3)
-
Step 700
700
#AE006A
oklch(49.2% 0.203 353.3)
-
Step 800
800 (this color)
#900858
oklch(43.1% 0.173 353.1)
-
Step 900
900
#731547
oklch(37.7% 0.135 353.6)
-
Step 950
950
#440F2A
oklch(27% 0.086 353.1)
#900858 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) | #2C3B5A | 0.197 |
| Deuteranopia (no green cones) | #515255 | 0.173 |
| Tritanopia (no blue cones) | #9C0033 | 0.065 |
| Achromatopsia (no color) | #4A4A4A | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #900858
#900858
oklch(43.1% 0.173 353.1)
- #005F4C
#005F4C
oklch(43.3% 0.083 172.9)
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 #900858, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mulberry #920A4E ΔE 0.018
- Dark Fuchsia #9D0759 ΔE 0.028
- Berry #990F4B ΔE 0.033
- Deep Magenta #A0025C ΔE 0.034
- Purple Red #990147 ΔE 0.035
- Red Violet #9E0168 ΔE 0.038
- Red Purple #820747 ΔE 0.040
- Violet Red #A50055 ΔE 0.046
Use #900858 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.