#254A8F
Closest named color: Cobalt (#1E488F). oklch(42.1% 0.122 261.5), rgb(37, 74, 143).
Aa
White text reads best on this color (8.55:1).
About this color
#254A8F is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.122 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.009 away. White text reads best on it, at 8.55:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.45:1 |
| White text | 8.55:1 |
Values
| HEX | #254A8F |
| RGB | rgb(37, 74, 143) |
| HSL | hsl(219, 59%, 35%) |
| OKLCH | oklch(42.1% 0.122 261.5) |
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 #254A8F | 8.55:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #254A8F | 2.45:1 | Fails | Lc 14.9 | Not readable |
| #254A8F text on white | 8.55:1 | AAA | Lc 89.1 | Fine for body text |
| #254A8F text on black | 2.45:1 | Fails | Lc -13.1 | 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
#E2EAF8
oklch(93.5% 0.021 261.8)
-
Step 200
200
#CBDAF4
oklch(88.5% 0.039 261.5)
-
Step 300
300
#A7C2EF
oklch(81% 0.07 260.6)
-
Step 400
400
#78A0E8
oklch(70.6% 0.115 261.6)
-
Step 500
500
#5687E1
oklch(63.1% 0.146 261.6)
-
Step 600
600
#3B6FCF
oklch(55.7% 0.159 261.4)
-
Step 700
700
#2E5CB3
oklch(49.1% 0.147 261.7)
-
Step 800
800 (this color)
#254A8F
oklch(42.1% 0.122 261.5)
-
Step 900
900
#244073
oklch(37.8% 0.094 261.4)
-
Step 950
950
#152644
oklch(27.1% 0.061 261)
#254A8F 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) | #255192 | 0.020 |
| Deuteranopia (no green cones) | #0A488E | 0.020 |
| Tritanopia (no blue cones) | #005A65 | 0.097 |
| Achromatopsia (no color) | #4C4C4C | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #254A8F
#254A8F
oklch(42.1% 0.122 261.5)
- #654800
#654800
oklch(42.2% 0.087 82.1)
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 #254A8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.009
- Dusk Blue #26538D ΔE 0.027
- Light Navy #155084 ΔE 0.029
- Deep Sea Blue #015482 ΔE 0.042
- Twilight Blue #0A437A ΔE 0.046
- Blueberry #464196 ΔE 0.047
- Light Navy Blue #2E5A88 ΔE 0.053
- Dark Slate Blue #483D8B ΔE 0.053
Use #254A8F 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.