#900454
Closest named color: Mulberry (#920A4E). oklch(42.8% 0.173 355), rgb(144, 4, 84).
Aa
White text reads best on this color (9.00:1).
About this color
#900454 is a dark, vivid red. In OKLCH its lightness is 43%, its chroma 0.173 and its hue 355°. Its hue sits on the warm side of the wheel. The nearest named color is Mulberry (#920A4E), ΔE 0.013 away. White text reads best on it, at 9.00:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | vivid (0.173) |
| Temperature | warm |
| Nearest name | Mulberry (#920A4E) |
| Black text | 2.33:1 |
| White text | 9.00:1 |
Values
| HEX | #900454 |
| RGB | rgb(144, 4, 84) |
| HSL | hsl(326, 95%, 29%) |
| OKLCH | oklch(42.8% 0.173 355) |
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 #900454 | 9.00:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #900454 | 2.33:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #900454 text on white | 9.00:1 | AAA | Lc 88.6 | Fine for body text |
| #900454 text on black | 2.33:1 | Fails | Lc -13.6 | 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
#FBE2EB
oklch(93.6% 0.03 353.9)
-
Step 200
200
#F9CADB
oklch(88.5% 0.057 354.7)
-
Step 300
300
#F5A5C4
oklch(80.8% 0.102 354.7)
-
Step 400
400
#EC70A6
oklch(70.7% 0.163 354.7)
-
Step 500
500
#E24290
oklch(63.2% 0.207 354.9)
-
Step 600
600
#CD087A
oklch(55.6% 0.225 354.9)
-
Step 700
700
#AE0066
oklch(49% 0.201 355.1)
-
Step 800
800 (this color)
#900454
oklch(42.8% 0.173 355)
-
Step 900
900
#731545
oklch(37.6% 0.134 354.9)
-
Step 950
950
#440F28
oklch(27% 0.085 355.5)
#900454 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) | #2C3A56 | 0.199 |
| Deuteranopia (no green cones) | #515151 | 0.173 |
| Tritanopia (no blue cones) | #9C0030 | 0.064 |
| Achromatopsia (no color) | #494949 | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #900454
#900454
oklch(42.8% 0.173 355)
- #005D4D
#005D4D
oklch(42.7% 0.08 175.6)
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 #900454, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mulberry #920A4E ΔE 0.013
- Dark Fuchsia #9D0759 ΔE 0.029
- Berry #990F4B ΔE 0.030
- Purple Red #990147 ΔE 0.030
- Red Purple #820747 ΔE 0.036
- Deep Magenta #A0025C ΔE 0.036
- Red Violet #9E0168 ΔE 0.042
- Violet Red #A50055 ΔE 0.045
Use #900454 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.