#900158
Closest named color: Mulberry (#920A4E). oklch(42.9% 0.177 352.8), rgb(144, 1, 88).
Aa
White text reads best on this color (9.00:1).
About this color
#900158 is a dark, vivid red. In OKLCH its lightness is 43%, its chroma 0.177 and its hue 353°. Its hue sits on the warm side of the wheel. The nearest named color is Mulberry (#920A4E), ΔE 0.021 away. White text reads best on it, at 9.00:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | vivid (0.177) |
| Temperature | warm |
| Nearest name | Mulberry (#920A4E) |
| Black text | 2.33:1 |
| White text | 9.00:1 |
Values
| HEX | #900158 |
| RGB | rgb(144, 1, 88) |
| HSL | hsl(323, 99%, 28%) |
| OKLCH | oklch(42.9% 0.177 352.8) |
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 #900158 | 9.00:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #900158 | 2.33:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #900158 text on white | 9.00:1 | AAA | Lc 88.5 | Fine for body text |
| #900158 text on black | 2.33:1 | Fails | Lc -13.7 | 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
#FEF2F6
oklch(97.2% 0.014 355)
-
Step 100
100
#FBE2EC
oklch(93.6% 0.03 351.5)
-
Step 200
200
#F9CADC
oklch(88.5% 0.058 353.4)
-
Step 300
300
#F5A5C7
oklch(80.9% 0.103 352.5)
-
Step 400
400
#EC70AA
oklch(70.8% 0.165 352.8)
-
Step 500
500
#E24095
oklch(63.2% 0.211 352.8)
-
Step 600
600
#CD017F
oklch(55.6% 0.229 352.9)
-
Step 700
700
#AD006B
oklch(49% 0.203 352.6)
-
Step 800
800 (this color)
#900158
oklch(42.9% 0.177 352.8)
-
Step 900
900
#731348
oklch(37.6% 0.138 352.6)
-
Step 950
950
#440F2A
oklch(27% 0.086 353.1)
#900158 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) | #2A3A5A | 0.202 |
| Deuteranopia (no green cones) | #505155 | 0.175 |
| Tritanopia (no blue cones) | #9C0031 | 0.070 |
| Achromatopsia (no color) | #494949 | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #900158
#900158
oklch(42.9% 0.177 352.8)
- #005E4B
#005E4B
oklch(43% 0.083 172.7)
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 #900158, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mulberry #920A4E ΔE 0.021
- Dark Fuchsia #9D0759 ΔE 0.030
- Deep Magenta #A0025C ΔE 0.035
- Berry #990F4B ΔE 0.036
- Purple Red #990147 ΔE 0.037
- Red Violet #9E0168 ΔE 0.038
- Red Purple #820747 ΔE 0.040
- Violet Red #A50055 ΔE 0.047
Use #900158 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.