#28233E
Closest named color: Oxford Blue (#1B263B). oklch(27.5% 0.049 291.3), rgb(40, 35, 62).
Aa
White text reads best on this color (14.99:1).
About this color
#28233E is a dark, muted purple. In OKLCH its lightness is 28%, its chroma 0.049 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.024 away. White text reads best on it, at 14.99:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | muted (0.049) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.40:1 |
| White text | 14.99:1 |
Values
| HEX | #28233E |
| RGB | rgb(40, 35, 62) |
| HSL | hsl(251, 28%, 19%) |
| OKLCH | oklch(27.5% 0.049 291.3) |
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 #28233E | 14.99:1 | AAA | Lc -104.6 | Preferred for body text |
| Black text on #28233E | 1.40:1 | Fails | Lc 0.0 | Not readable |
| #28233E text on white | 14.99:1 | AAA | Lc 101.8 | Preferred for body text |
| #28233E text on black | 1.40:1 | 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
#EAE8F5
oklch(93.6% 0.018 293.1)
-
Step 200
200
#D9D6EE
oklch(88.6% 0.033 291.5)
-
Step 300
300
#C0BBE4
oklch(81% 0.058 290.6)
-
Step 400
400
#A196D7
oklch(70.7% 0.094 291.6)
-
Step 500
500
#8B7BCC
oklch(63.1% 0.12 291.7)
-
Step 600
600
#7563B9
oklch(55.6% 0.13 291.2)
-
Step 700
700
#62529F
oklch(49.1% 0.12 290.9)
-
Step 800
800
#504381
oklch(42.7% 0.1 291.2)
-
Step 900
900
#423967
oklch(37.6% 0.077 291.2)
-
Step 950
950 (this color)
#28233E
oklch(27.5% 0.049 291.3)
#28233E 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) | #1B273F | 0.024 |
| Deuteranopia (no green cones) | #1B263D | 0.023 |
| Tritanopia (no blue cones) | #23282D | 0.042 |
| Achromatopsia (no color) | #272727 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28233E
#28233E
oklch(27.5% 0.049 291.3)
- #292A0A
#292A0A
oklch(27.6% 0.049 110.9)
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 #28233E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.024
- Space Cadet #2B2D42 ΔE 0.033
- Dark #1B2431 ΔE 0.035
- Jet #212529 ΔE 0.045
- Gunmetal #293241 ΔE 0.049
- Prussian Blue #1D3557 ΔE 0.065
- Rich Black #0D1B2A ΔE 0.066
- Eggplant #380835 ΔE 0.071
Use #28233E 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.