#2B2137
Closest named color: Oxford Blue (#1B263B). oklch(27% 0.042 304.6), rgb(43, 33, 55).
Aa
White text reads best on this color (15.26:1).
About this color
#2B2137 is a dark, muted purple. In OKLCH its lightness is 27%, its chroma 0.042 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.030 away. White text reads best on it, at 15.26:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | muted (0.042) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.37:1 |
| White text | 15.26:1 |
Values
| HEX | #2B2137 |
| RGB | rgb(43, 33, 55) |
| HSL | hsl(267, 25%, 17%) |
| OKLCH | oklch(27% 0.042 304.6) |
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 #2B2137 | 15.26:1 | AAA | Lc -104.9 | Preferred for body text |
| Black text on #2B2137 | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #2B2137 text on white | 15.26:1 | AAA | Lc 102.1 | Preferred for body text |
| #2B2137 text on black | 1.37:1 | 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
#F6F4F9
oklch(97% 0.007 304.2)
-
Step 100
100
#ECE8F2
oklch(93.7% 0.014 304.1)
-
Step 200
200
#DDD5E8
oklch(88.5% 0.027 304.8)
-
Step 300
300
#C8B9DB
oklch(80.9% 0.05 305.3)
-
Step 400
400
#AC94C9
oklch(70.7% 0.08 305.1)
-
Step 500
500
#9779BB
oklch(63% 0.102 304.5)
-
Step 600
600
#8261A7
oklch(55.5% 0.111 304.8)
-
Step 700
700
#6E508F
oklch(49% 0.103 304.9)
-
Step 800
800
#5A4274
oklch(42.7% 0.085 305.2)
-
Step 900
900
#4A385E
oklch(37.7% 0.067 305.2)
-
Step 950
950 (this color)
#2B2137
oklch(27% 0.042 304.6)
#2B2137 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) | #1C2538 | 0.028 |
| Deuteranopia (no green cones) | #1E2536 | 0.026 |
| Tritanopia (no blue cones) | #292429 | 0.032 |
| Achromatopsia (no color) | #252525 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B2137
#2B2137
oklch(27% 0.042 304.6)
- #222A12
#222A12
oklch(27% 0.042 124.3)
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 #2B2137, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.030
- Dark #1B2431 ΔE 0.033
- Jet #212529 ΔE 0.038
- Space Cadet #2B2D42 ΔE 0.039
- Gunmetal #293241 ΔE 0.054
- Rich Black #0D1B2A ΔE 0.063
- Eggplant #380835 ΔE 0.065
- Aubergine #3D0734 ΔE 0.069
Use #2B2137 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.