#28263B
Closest named color: Oxford Blue (#1B263B). oklch(28.1% 0.038 288), rgb(40, 38, 59).
Aa
White text reads best on this color (14.67:1).
About this color
#28263B is a dark, muted purple. In OKLCH its lightness is 28%, its chroma 0.038 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.022 away. White text reads best on it, at 14.67:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.43:1 |
| White text | 14.67:1 |
Values
| HEX | #28263B |
| RGB | rgb(40, 38, 59) |
| HSL | hsl(246, 22%, 19%) |
| OKLCH | oklch(28.1% 0.038 288) |
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 #28263B | 14.67:1 | AAA | Lc -104.3 | Preferred for body text |
| Black text on #28263B | 1.43:1 | Fails | Lc 0.0 | Not readable |
| #28263B text on white | 14.67:1 | AAA | Lc 101.5 | Preferred for body text |
| #28263B text on black | 1.43:1 | 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
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E9E9F2
oklch(93.7% 0.012 286.2)
-
Step 200
200
#D8D7E9
oklch(88.5% 0.025 288.4)
-
Step 300
300
#BEBDDD
oklch(81% 0.045 286.8)
-
Step 400
400
#9E9ACC
oklch(70.8% 0.073 288.1)
-
Step 500
500
#8780BF
oklch(63.1% 0.094 288.5)
-
Step 600
600
#7169AB
oklch(55.6% 0.101 288.2)
-
Step 700
700
#5E5793
oklch(49% 0.095 287.7)
-
Step 800
800
#4D4777
oklch(42.6% 0.078 288.3)
-
Step 900
900
#403C60
oklch(37.7% 0.061 288.2)
-
Step 950
950 (this color)
#28263B
oklch(28.1% 0.038 288)
#28263B 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) | #20293C | 0.015 |
| Deuteranopia (no green cones) | #20283A | 0.015 |
| Tritanopia (no blue cones) | #242A2E | 0.032 |
| Achromatopsia (no color) | #282828 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28263B
#28263B
oklch(28.1% 0.038 288)
- #2B2A13
#2B2A13
oklch(28% 0.038 106.4)
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 #28263B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.022
- Space Cadet #2B2D42 ΔE 0.025
- Dark #1B2431 ΔE 0.030
- Jet #212529 ΔE 0.037
- Gunmetal #293241 ΔE 0.039
- Prussian Blue #1D3557 ΔE 0.062
- Rich Black #0D1B2A ΔE 0.067
- Dark Blue Grey #1F3B4D ΔE 0.068
Use #28263B 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.