#28253C
Closest named color: Oxford Blue (#1B263B). oklch(27.9% 0.042 289.4), rgb(40, 37, 60).
Aa
White text reads best on this color (14.78:1).
About this color
#28253C is a dark, muted purple. In OKLCH its lightness is 28%, its chroma 0.042 and its hue 289°. 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 14.78:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.42:1 |
| White text | 14.78:1 |
Values
| HEX | #28253C |
| RGB | rgb(40, 37, 60) |
| HSL | hsl(248, 24%, 19%) |
| OKLCH | oklch(27.9% 0.042 289.4) |
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 #28253C | 14.78:1 | AAA | Lc -104.4 | Preferred for body text |
| Black text on #28253C | 1.42:1 | Fails | Lc 0.0 | Not readable |
| #28253C text on white | 14.78:1 | AAA | Lc 101.6 | Preferred for body text |
| #28253C text on black | 1.42:1 | 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
#E9E8F3
oklch(93.5% 0.015 290.3)
-
Step 200
200
#D8D7EB
oklch(88.6% 0.027 288.1)
-
Step 300
300
#BFBCDF
oklch(80.9% 0.049 289.2)
-
Step 400
400
#9F99CF
oklch(70.8% 0.078 289.3)
-
Step 500
500
#887FC3
oklch(63.2% 0.101 289.2)
-
Step 600
600
#7267AF
oklch(55.6% 0.11 289.3)
-
Step 700
700
#605597
oklch(49% 0.104 289.7)
-
Step 800
800
#4E467A
oklch(42.6% 0.085 289.4)
-
Step 900
900
#413B62
oklch(37.7% 0.066 289.9)
-
Step 950
950 (this color)
#28253C
oklch(27.9% 0.042 289.4)
#28253C 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) | #1F283D | 0.017 |
| Deuteranopia (no green cones) | #1F273B | 0.016 |
| Tritanopia (no blue cones) | #23292D | 0.036 |
| Achromatopsia (no color) | #282828 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28253C
#28253C
oklch(27.9% 0.042 289.4)
- #2A2A10
#2A2A10
oklch(27.8% 0.042 108.8)
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 #28253C, 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 0.027
- Dark #1B2431 ΔE 0.032
- Jet #212529 ΔE 0.039
- Gunmetal #293241 ΔE 0.042
- Prussian Blue #1D3557 ΔE 0.063
- Rich Black #0D1B2A ΔE 0.067
- Dark Blue Grey #1F3B4D ΔE 0.071
Use #28253C 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.