#25243F
Closest named color: Oxford Blue (#1B263B). oklch(27.5% 0.049 284.4), rgb(37, 36, 63).
Aa
White text reads best on this color (14.97:1).
About this color
#25243F is a dark, muted purple. In OKLCH its lightness is 28%, its chroma 0.049 and its hue 284°. 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 14.97:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.40:1 |
| White text | 14.97:1 |
Values
| HEX | #25243F |
| RGB | rgb(37, 36, 63) |
| HSL | hsl(242, 27%, 19%) |
| OKLCH | oklch(27.5% 0.049 284.4) |
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 #25243F | 14.97:1 | AAA | Lc -104.6 | Preferred for body text |
| Black text on #25243F | 1.40:1 | Fails | Lc 0.0 | Not readable |
| #25243F text on white | 14.97:1 | AAA | Lc 101.8 | Preferred for body text |
| #25243F 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E8E9F5
oklch(93.7% 0.016 282.3)
-
Step 200
200
#D6D7EE
oklch(88.5% 0.031 283.8)
-
Step 300
300
#BCBCE6
oklch(80.9% 0.059 285)
-
Step 400
400
#9A99D9
oklch(70.8% 0.093 284.5)
-
Step 500
500
#827ECF
oklch(63.1% 0.12 284.7)
-
Step 600
600
#6C66BC
oklch(55.6% 0.13 284.5)
-
Step 700
700
#5A54A2
oklch(49% 0.122 284.4)
-
Step 800
800
#4A4583
oklch(42.6% 0.1 285)
-
Step 900
900
#3D3B69
oklch(37.7% 0.077 284)
-
Step 950
950 (this color)
#25243F
oklch(27.5% 0.049 284.4)
#25243F 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) | #1B2840 | 0.019 |
| Deuteranopia (no green cones) | #1B263E | 0.017 |
| Tritanopia (no blue cones) | #1E292E | 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°).
- #25243F
#25243F
oklch(27.5% 0.049 284.4)
- #2C2908
#2C2908
oklch(27.6% 0.049 104.1)
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 #25243F, 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 0.032
- Dark #1B2431 ΔE 0.033
- Jet #212529 ΔE 0.044
- Gunmetal #293241 ΔE 0.047
- Prussian Blue #1D3557 ΔE 0.062
- Rich Black #0D1B2A ΔE 0.064
- Marine #042E60 ΔE 0.068
Use #25243F 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.