#37314D
Closest named color: Space Cadet (#2B2D42). oklch(33.2% 0.049 293.4), rgb(55, 49, 77).
Aa
White text reads best on this color (12.28:1).
About this color
#37314D is a dark, muted purple. In OKLCH its lightness is 33%, its chroma 0.049 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.031 away. White text reads best on it, at 12.28:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | muted (0.049) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.70:1 |
| White text | 12.28:1 |
Values
| HEX | #37314D |
| RGB | rgb(55, 49, 77) |
| HSL | hsl(253, 22%, 25%) |
| OKLCH | oklch(33.2% 0.049 293.4) |
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 #37314D | 12.28:1 | AAA | Lc -101.5 | Preferred for body text |
| Black text on #37314D | 1.70:1 | Fails | Lc 0.0 | Not readable |
| #37314D text on white | 12.28:1 | AAA | Lc 98.0 | Preferred for body text |
| #37314D text on black | 1.70:1 | 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 900.
-
Step 50
50
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#EAE9F0
oklch(93.7% 0.009 292.8)
-
Step 200
200
#D9D7E6
oklch(88.5% 0.021 292.1)
-
Step 300
300
#C1BDD7
oklch(81% 0.036 292.6)
-
Step 400
400
#A29AC3
oklch(70.7% 0.06 293.8)
-
Step 500
500
#8B81B3
oklch(63.1% 0.075 293.3)
-
Step 600
600
#756A9F
oklch(55.6% 0.082 293.1)
-
Step 700
700
#635888
oklch(49.1% 0.076 293.9)
-
Step 800
800
#50486E
oklch(42.6% 0.063 293.2)
-
Step 900
900 (this color)
#37314D
oklch(33.2% 0.049 293.4)
-
Step 950
950
#272434
oklch(27.1% 0.03 292.9)
#37314D 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) | #2A354E | 0.023 |
| Deuteranopia (no green cones) | #2A344C | 0.023 |
| Tritanopia (no blue cones) | #32363B | 0.042 |
| Achromatopsia (no color) | #353535 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37314D
#37314D
oklch(33.2% 0.049 293.4)
- #36391A
#36391A
oklch(33.3% 0.049 113.6)
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 #37314D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.031
- Gunmetal #293241 ΔE 0.034
- Prussian Blue #1D3557 ΔE 0.041
- Onyx #343A40 ΔE 0.043
- Dark Blue Grey #1F3B4D ΔE 0.045
- Midnight Green #073B4C ΔE 0.061
- Charcoal Grey #3C4142 ΔE 0.062
- Dark Grey Blue #29465B ΔE 0.065
Use #37314D 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.