#2B1B38
Closest named color: Oxford Blue (#1B263B). oklch(25.7% 0.056 308.3), rgb(43, 27, 56).
Aa
White text reads best on this color (15.95:1).
About this color
#2B1B38 is a dark, muted purple. In OKLCH its lightness is 26%, its chroma 0.056 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.042 away. White text reads best on it, at 15.95:1.
| Hue family | Purples |
| Lightness | dark (26%) |
| Chroma | muted (0.056) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.31:1 |
| White text | 15.95:1 |
Values
| HEX | #2B1B38 |
| RGB | rgb(43, 27, 56) |
| HSL | hsl(273, 35%, 16%) |
| OKLCH | oklch(25.7% 0.056 308.3) |
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 #2B1B38 | 15.95:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #2B1B38 | 1.31:1 | Fails | Lc 0.0 | Not readable |
| #2B1B38 text on white | 15.95:1 | AAA | Lc 102.8 | Preferred for body text |
| #2B1B38 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EDE7F4
oklch(93.6% 0.018 306.7)
-
Step 200
200
#E0D3EC
oklch(88.5% 0.037 308.8)
-
Step 300
300
#CDB6E2
oklch(81% 0.066 308.5)
-
Step 400
400
#B38ED4
oklch(70.7% 0.107 308)
-
Step 500
500
#A170C8
oklch(63% 0.137 308.6)
-
Step 600
600
#8C57B5
oklch(55.6% 0.149 308.3)
-
Step 700
700
#77479C
oklch(49.2% 0.138 308.2)
-
Step 800
800
#613A7E
oklch(42.6% 0.115 308.8)
-
Step 900
900
#4F3365
oklch(37.7% 0.088 308.6)
-
Step 950
950 (this color)
#2B1B38
oklch(25.7% 0.056 308.3)
#2B1B38 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) | #142139 | 0.043 |
| Deuteranopia (no green cones) | #182237 | 0.040 |
| Tritanopia (no blue cones) | #292026 | 0.042 |
| Achromatopsia (no color) | #222222 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B1B38
#2B1B38
oklch(25.7% 0.056 308.3)
- #1B2807
#1B2807
oklch(25.6% 0.056 128.2)
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 #2B1B38, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.042
- Dark #1B2431 ΔE 0.044
- Eggplant #380835 ΔE 0.049
- Dark Purple #35063E ΔE 0.052
- Jet #212529 ΔE 0.053
- Aubergine #3D0734 ΔE 0.056
- Space Cadet #2B2D42 ΔE 0.056
- Deep Purple #36013F ΔE 0.062
Use #2B1B38 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.