#37274E
Closest named color: Space Cadet (#2B2D42). oklch(31.1% 0.07 301.4), rgb(55, 39, 78).
Aa
White text reads best on this color (13.43:1).
About this color
#37274E is a dark, moderately saturated purple. In OKLCH its lightness is 31%, its chroma 0.070 and its hue 301°. 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 13.43:1.
| Hue family | Purples |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.070) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.56:1 |
| White text | 13.43:1 |
Values
| HEX | #37274E |
| RGB | rgb(55, 39, 78) |
| HSL | hsl(265, 33%, 23%) |
| OKLCH | oklch(31.1% 0.07 301.4) |
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 #37274E | 13.43:1 | AAA | Lc -102.9 | Preferred for body text |
| Black text on #37274E | 1.56:1 | Fails | Lc 0.0 | Not readable |
| #37274E text on white | 13.43:1 | AAA | Lc 99.8 | Preferred for body text |
| #37274E text on black | 1.56:1 | 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
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#ECE6F8
oklch(93.5% 0.025 301.1)
-
Step 200
200
#DED3F3
oklch(88.6% 0.045 301.1)
-
Step 300
300
#CAB5EE
oklch(81% 0.082 301.4)
-
Step 400
400
#AF8CE6
oklch(70.8% 0.133 301)
-
Step 500
500
#9C6CDE
oklch(63.1% 0.169 301.1)
-
Step 600
600
#8850CC
oklch(55.6% 0.186 301.4)
-
Step 700
700
#7340B0
oklch(49% 0.172 301.2)
-
Step 800
800
#5E368F
oklch(42.8% 0.142 301.3)
-
Step 900
900
#4D3072
oklch(37.8% 0.111 301.6)
-
Step 950
950 (this color)
#37274E
oklch(31.1% 0.07 301.4)
#37274E 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) | #1C2F4F | 0.047 |
| Deuteranopia (no green cones) | #202F4D | 0.044 |
| Tritanopia (no blue cones) | #332E36 | 0.055 |
| Achromatopsia (no color) | #2F2F2F | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37274E
#37274E
oklch(31.1% 0.07 301.4)
- #2B3605
#2B3605
oklch(31.2% 0.071 121.9)
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 #37274E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.038
- Gunmetal #293241 ΔE 0.052
- Prussian Blue #1D3557 ΔE 0.054
- Oxford Blue #1B263B ΔE 0.062
- Dark Blue Grey #1F3B4D ΔE 0.070
- Marine #042E60 ΔE 0.071
- Onyx #343A40 ΔE 0.072
- Deep Violet #490648 ΔE 0.073
Use #37274E 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.