#211F37
Closest named color: Oxford Blue (#1B263B). oklch(25.4% 0.045 286.6), rgb(33, 31, 55).
Aa
White text reads best on this color (15.95:1).
About this color
#211F37 is a dark, muted purple. In OKLCH its lightness is 25%, its chroma 0.045 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.024 away. White text reads best on it, at 15.95:1.
| Hue family | Purples |
| Lightness | dark (25%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.31:1 |
| White text | 15.95:1 |
Values
| HEX | #211F37 |
| RGB | rgb(33, 31, 55) |
| HSL | hsl(245, 28%, 17%) |
| OKLCH | oklch(25.4% 0.045 286.6) |
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 #211F37 | 15.95:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #211F37 | 1.31:1 | Fails | Lc 0.0 | Not readable |
| #211F37 text on white | 15.95:1 | AAA | Lc 102.9 | Preferred for body text |
| #211F37 text on black | 1.31:1 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E9F4
oklch(93.7% 0.015 286.1)
-
Step 200
200
#D7D7EC
oklch(88.6% 0.029 285.8)
-
Step 300
300
#BDBCE2
oklch(80.9% 0.053 286.3)
-
Step 400
400
#9C99D3
oklch(70.7% 0.084 286.4)
-
Step 500
500
#857FC8
oklch(63.2% 0.108 286.6)
-
Step 600
600
#6F67B4
oklch(55.6% 0.117 286.7)
-
Step 700
700
#5D559B
oklch(49% 0.11 286.9)
-
Step 800
800
#4C467E
oklch(42.7% 0.091 286.8)
-
Step 900
900
#3F3B65
oklch(37.6% 0.071 286.8)
-
Step 950
950 (this color)
#211F37
oklch(25.4% 0.045 286.6)
#211F37 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) | #182238 | 0.017 |
| Deuteranopia (no green cones) | #172136 | 0.018 |
| Tritanopia (no blue cones) | #1B2328 | 0.037 |
| Achromatopsia (no color) | #222222 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #211F37
#211F37
oklch(25.4% 0.045 286.6)
- #252407
#252407
oklch(25.4% 0.045 107.3)
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 #211F37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.024
- Dark #1B2431 ΔE 0.025
- Jet #212529 ΔE 0.039
- Rich Black #0D1B2A ΔE 0.045
- Space Cadet #2B2D42 ΔE 0.052
- Gunmetal #293241 ΔE 0.065
- Eggplant #380835 ΔE 0.071
- Dark Purple #35063E ΔE 0.073
Use #211F37 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.