#37223B
Closest named color: Space Cadet (#2B2D42). oklch(28.9% 0.053 321), rgb(55, 34, 59).
Aa
White text reads best on this color (14.43:1).
About this color
#37223B is a dark, muted purple. In OKLCH its lightness is 29%, its chroma 0.053 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.038 away. White text reads best on it, at 14.43:1.
| Hue family | Purples |
| Lightness | dark (29%) |
| Chroma | muted (0.053) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.45:1 |
| White text | 14.43:1 |
Values
| HEX | #37223B |
| RGB | rgb(55, 34, 59) |
| HSL | hsl(290, 27%, 18%) |
| OKLCH | oklch(28.9% 0.053 321) |
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 #37223B | 14.43:1 | AAA | Lc -104.0 | Preferred for body text |
| Black text on #37223B | 1.45:1 | Fails | Lc 0.0 | Not readable |
| #37223B text on white | 14.43:1 | AAA | Lc 101.1 | Preferred for body text |
| #37223B text on black | 1.45:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F8F4F9
oklch(97.2% 0.008 319.4)
-
Step 100
100
#F0E6F1
oklch(93.6% 0.018 323)
-
Step 200
200
#E4D2E7
oklch(88.5% 0.034 321.4)
-
Step 300
300
#D4B4D9
oklch(80.9% 0.062 321.7)
-
Step 400
400
#BD8CC6
oklch(70.7% 0.099 321.1)
-
Step 500
500
#AC6EB8
oklch(63.1% 0.127 320.9)
-
Step 600
600
#9755A4
oklch(55.7% 0.138 320.8)
-
Step 700
700
#81448C
oklch(49% 0.129 321.3)
-
Step 800
800
#693972
oklch(42.8% 0.106 321.1)
-
Step 900
900
#55315C
oklch(37.6% 0.084 320.9)
-
Step 950
950 (this color)
#37223B
oklch(28.9% 0.053 321)
#37223B 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) | #1F283C | 0.046 |
| Deuteranopia (no green cones) | #242A3A | 0.042 |
| Tritanopia (no blue cones) | #38252B | 0.034 |
| Achromatopsia (no color) | #2A2A2A | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37223B
#37223B
oklch(28.9% 0.053 321)
- #1C3218
#1C3218
oklch(29.1% 0.053 140.6)
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 #37223B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.038
- Oxford Blue #1B263B ΔE 0.051
- Gunmetal #293241 ΔE 0.053
- Dark #1B2431 ΔE 0.057
- Jet #212529 ΔE 0.057
- Aubergine #3D0734 ΔE 0.061
- Eggplant #380835 ΔE 0.062
- Eggplant Purple #430541 ΔE 0.067
Use #37223B 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.