#252540
Closest named color: Oxford Blue (#1B263B). oklch(27.8% 0.049 282.7), rgb(37, 37, 64).
Aa
White text reads best on this color (14.81:1).
About this color
#252540 is a dark, muted purple. In OKLCH its lightness is 28%, its chroma 0.049 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.020 away. White text reads best on it, at 14.81:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.41:1 |
| White text | 14.81:1 |
Values
| HEX | #252540 |
| RGB | rgb(37, 37, 64) |
| HSL | hsl(240, 27%, 20%) |
| OKLCH | oklch(27.8% 0.049 282.7) |
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 #252540 | 14.81:1 | AAA | Lc -104.5 | Preferred for body text |
| Black text on #252540 | 1.41:1 | Fails | Lc 0.0 | Not readable |
| #252540 text on white | 14.81:1 | AAA | Lc 101.6 | Preferred for body text |
| #252540 text on black | 1.41:1 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E8E9F5
oklch(93.7% 0.016 282.3)
-
Step 200
200
#D5D7EF
oklch(88.5% 0.033 281.9)
-
Step 300
300
#BABDE6
oklch(81% 0.058 281.7)
-
Step 400
400
#9899DA
oklch(70.7% 0.094 283)
-
Step 500
500
#7F7FCF
oklch(63.1% 0.119 282.4)
-
Step 600
600
#6A67BC
oklch(55.6% 0.129 282.9)
-
Step 700
700
#5855A2
oklch(49% 0.12 282.8)
-
Step 800
800
#484684
oklch(42.7% 0.101 282.7)
-
Step 900
900
#3C3B69
oklch(37.6% 0.078 283)
-
Step 950
950 (this color)
#252540
oklch(27.8% 0.049 282.7)
#252540 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) | #1C2941 | 0.018 |
| Deuteranopia (no green cones) | #1B273F | 0.017 |
| Tritanopia (no blue cones) | #1E2A2F | 0.042 |
| Achromatopsia (no color) | #282828 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #252540
#252540
oklch(27.8% 0.049 282.7)
- #2D2908
#2D2908
oklch(27.7% 0.049 102.4)
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 #252540, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.020
- Space Cadet #2B2D42 ΔE 0.029
- Dark #1B2431 ΔE 0.034
- Gunmetal #293241 ΔE 0.044
- Jet #212529 ΔE 0.045
- Prussian Blue #1D3557 ΔE 0.058
- Marine #042E60 ΔE 0.066
- Rich Black #0D1B2A ΔE 0.066
Use #252540 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.