#254F8D
Closest named color: Dusk Blue (#26538D). oklch(43.1% 0.113 258.2), rgb(37, 79, 141).
Aa
White text reads best on this color (8.13:1).
About this color
#254F8D is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.113 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.012 away. White text reads best on it, at 8.13:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.58:1 |
| White text | 8.13:1 |
Values
| HEX | #254F8D |
| RGB | rgb(37, 79, 141) |
| HSL | hsl(216, 58%, 35%) |
| OKLCH | oklch(43.1% 0.113 258.2) |
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 #254F8D | 8.13:1 | AAA | Lc -92.5 | Preferred for body text |
| Black text on #254F8D | 2.58:1 | Fails | Lc 16.2 | Dividers and decoration only |
| #254F8D text on white | 8.13:1 | AAA | Lc 87.8 | Fine for body text |
| #254F8D text on black | 2.58:1 | Fails | Lc -14.3 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EBF7
oklch(93.7% 0.019 255.5)
-
Step 200
200
#CBDAF2
oklch(88.5% 0.037 259.8)
-
Step 300
300
#A7C2EC
oklch(80.8% 0.067 259.1)
-
Step 400
400
#77A2E2
oklch(70.7% 0.105 258.1)
-
Step 500
500
#5389DA
oklch(63% 0.136 258.3)
-
Step 600
600
#3772C7
oklch(55.6% 0.146 257.8)
-
Step 700
700
#2A5FAC
oklch(49.1% 0.135 258.1)
-
Step 800
800 (this color)
#254F8D
oklch(43.1% 0.113 258.2)
-
Step 900
900
#224170
oklch(37.7% 0.089 258.5)
-
Step 950
950
#142641
oklch(26.8% 0.056 258.3)
#254F8D 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) | #31558F | 0.023 |
| Deuteranopia (no green cones) | #1F4B8C | 0.014 |
| Tritanopia (no blue cones) | #005D67 | 0.088 |
| Achromatopsia (no color) | #4F4F4F | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #254F8D
#254F8D
oklch(43.1% 0.113 258.2)
- #6B4900
#6B4900
oklch(43.2% 0.09 78.2)
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 #254F8D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.012
- Light Navy #155084 ΔE 0.020
- Cobalt #1E488F ΔE 0.023
- Deep Sea Blue #015482 ΔE 0.031
- Light Navy Blue #2E5A88 ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.045
- Twilight #4E518B ΔE 0.052
- Twilight Blue #0A437A ΔE 0.052
Use #254F8D 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.