#37273D
Closest named color: Space Cadet (#2B2D42). oklch(30.1% 0.044 316.6), rgb(55, 39, 61).
Aa
White text reads best on this color (13.81:1).
About this color
#37273D is a dark, muted purple. In OKLCH its lightness is 30%, its chroma 0.044 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.027 away. White text reads best on it, at 13.81:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | muted (0.044) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.52:1 |
| White text | 13.81:1 |
Values
| HEX | #37273D |
| RGB | rgb(55, 39, 61) |
| HSL | hsl(284, 22%, 20%) |
| OKLCH | oklch(30.1% 0.044 316.6) |
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 #37273D | 13.81:1 | AAA | Lc -103.4 | Preferred for body text |
| Black text on #37273D | 1.52:1 | Fails | Lc 0.0 | Not readable |
| #37273D text on white | 13.81:1 | AAA | Lc 100.4 | Preferred for body text |
| #37273D text on black | 1.52:1 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EEE7F1
oklch(93.6% 0.015 316)
-
Step 200
200
#E1D4E6
oklch(88.6% 0.028 316.7)
-
Step 300
300
#CEB7D8
oklch(80.9% 0.052 315.7)
-
Step 400
400
#B691C4
oklch(70.8% 0.083 316.6)
-
Step 500
500
#A374B5
oklch(63% 0.108 316.3)
-
Step 600
600
#8E5CA1
oklch(55.6% 0.117 316.3)
-
Step 700
700
#794B89
oklch(49% 0.109 317)
-
Step 800
800
#623E70
oklch(42.7% 0.091 316)
-
Step 900
900
#50355A
oklch(37.6% 0.07 316.6)
-
Step 950
950 (this color)
#37273D
oklch(30.1% 0.044 316.6)
#37273D 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) | #242C3E | 0.036 |
| Deuteranopia (no green cones) | #282D3C | 0.032 |
| Tritanopia (no blue cones) | #372A2F | 0.030 |
| Achromatopsia (no color) | #2D2D2D | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37273D
#37273D
oklch(30.1% 0.044 316.6)
- #24331D
#24331D
oklch(30.1% 0.043 136.1)
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 #37273D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.027
- Gunmetal #293241 ΔE 0.040
- Oxford Blue #1B263B ΔE 0.051
- Jet #212529 ΔE 0.057
- Dark #1B2431 ΔE 0.058
- Onyx #343A40 ΔE 0.060
- Prussian Blue #1D3557 ΔE 0.065
- Dark Blue Grey #1F3B4D ΔE 0.069
Use #37273D 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.