#25417D
Closest named color: Twilight Blue (#0A437A). oklch(38.8% 0.107 263.4), rgb(37, 65, 125).
Aa
White text reads best on this color (9.85:1).
About this color
#25417D is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.107 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.021 away. White text reads best on it, at 9.85:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.13:1 |
| White text | 9.85:1 |
Values
| HEX | #25417D |
| RGB | rgb(37, 65, 125) |
| HSL | hsl(221, 54%, 32%) |
| OKLCH | oklch(38.8% 0.107 263.4) |
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 #25417D | 9.85:1 | AAA | Lc -96.8 | Preferred for body text |
| Black text on #25417D | 2.13:1 | Fails | Lc 11.4 | Not readable |
| #25417D text on white | 9.85:1 | AAA | Lc 92.6 | Preferred for body text |
| #25417D text on black | 2.13:1 | Fails | Lc -9.9 | 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 900.
-
Step 50
50
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CADAF8
oklch(88.6% 0.045 263.1)
-
Step 300
300
#A6C1F5
oklch(80.9% 0.08 263.3)
-
Step 400
400
#769FF1
oklch(70.7% 0.129 263.3)
-
Step 500
500
#5384EC
oklch(63% 0.165 263.4)
-
Step 600
600
#396BDA
oklch(55.5% 0.179 263.4)
-
Step 700
700
#2C59BD
oklch(49.1% 0.165 263.3)
-
Step 800
800
#254999
oklch(42.7% 0.138 263.5)
-
Step 900
900 (this color)
#25417D
oklch(38.8% 0.107 263.4)
-
Step 950
950
#142547
oklch(27% 0.067 262.7)
#25417D 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) | #23487F | 0.020 |
| Deuteranopia (no green cones) | #113F7C | 0.019 |
| Tritanopia (no blue cones) | #004F59 | 0.087 |
| Achromatopsia (no color) | #434343 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25417D
#25417D
oklch(38.8% 0.107 263.4)
- #594000
#594000
oklch(38.9% 0.08 83.4)
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 #25417D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.021
- Cobalt #1E488F ΔE 0.034
- Light Navy #155084 ΔE 0.043
- Marine Blue #01386A ΔE 0.052
- Deep Sea Blue #015482 ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.056
- Dusk Blue #26538D ΔE 0.056
- Blueberry #464196 ΔE 0.062
Use #25417D 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.