#254D8A
Closest named color: Dusk Blue (#26538D). oklch(42.5% 0.111 258.7), rgb(37, 77, 138).
Aa
White text reads best on this color (8.37:1).
About this color
#254D8A is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.111 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.018 away. White text reads best on it, at 8.37:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.50:1 |
| White text | 8.37:1 |
Values
| HEX | #254D8A |
| RGB | rgb(37, 77, 138) |
| HSL | hsl(216, 58%, 34%) |
| OKLCH | oklch(42.5% 0.111 258.7) |
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 #254D8A | 8.37:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #254D8A | 2.50:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #254D8A text on white | 8.37:1 | AAA | Lc 88.6 | Fine for body text |
| #254D8A text on black | 2.50:1 | Fails | Lc -13.6 | 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 800.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EAF7
oklch(93.5% 0.02 260.2)
-
Step 200
200
#CBDAF2
oklch(88.5% 0.037 259.8)
-
Step 300
300
#A8C2EB
oklch(80.9% 0.065 259.4)
-
Step 400
400
#78A2E1
oklch(70.7% 0.104 258.3)
-
Step 500
500
#5589D9
oklch(63% 0.134 258.7)
-
Step 600
600
#3A72C6
oklch(55.7% 0.143 258.4)
-
Step 700
700
#2C5FAB
oklch(49.1% 0.133 258.4)
-
Step 800
800 (this color)
#254D8A
oklch(42.5% 0.111 258.7)
-
Step 900
900
#23416F
oklch(37.7% 0.087 258.7)
-
Step 950
950
#152641
oklch(26.9% 0.056 259.3)
#254D8A 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) | #2F538C | 0.022 |
| Deuteranopia (no green cones) | #1E4989 | 0.014 |
| Tritanopia (no blue cones) | #005B64 | 0.088 |
| Achromatopsia (no color) | #4E4E4E | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #254D8A
#254D8A
oklch(42.5% 0.111 258.7)
- #684700
#684700
oklch(42.4% 0.088 78.4)
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 #254D8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.018
- Light Navy #155084 ΔE 0.018
- Cobalt #1E488F ΔE 0.019
- Deep Sea Blue #015482 ΔE 0.031
- Light Navy Blue #2E5A88 ΔE 0.042
- Twilight Blue #0A437A ΔE 0.045
- Denim Blue #3B5B92 ΔE 0.051
- Twilight #4E518B ΔE 0.054
Use #254D8A 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.