#254F90
Closest named color: Dusk Blue (#26538D). oklch(43.4% 0.117 259), rgb(37, 79, 144).
Aa
White text reads best on this color (8.07:1).
About this color
#254F90 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.117 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.014 away. White text reads best on it, at 8.07:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.59:1 |
| White text | 8.07:1 |
Values
| HEX | #254F90 |
| RGB | rgb(37, 79, 144) |
| HSL | hsl(216, 59%, 35%) |
| OKLCH | oklch(43.4% 0.117 259) |
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 #254F90 | 8.07:1 | AAA | Lc -92.3 | Preferred for body text |
| Black text on #254F90 | 2.59:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #254F90 text on white | 8.07:1 | AAA | Lc 87.6 | Fine for body text |
| #254F90 text on black | 2.59:1 | Fails | Lc -14.5 | 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
#E2EAF7
oklch(93.5% 0.02 260.2)
-
Step 200
200
#CADAF3
oklch(88.4% 0.039 259.3)
-
Step 300
300
#A6C2ED
oklch(80.8% 0.068 258.9)
-
Step 400
400
#76A2E5
oklch(70.8% 0.11 258.6)
-
Step 500
500
#5389DD
oklch(63.2% 0.14 258.9)
-
Step 600
600
#3771CB
oklch(55.7% 0.152 259)
-
Step 700
700
#295EAF
oklch(49.1% 0.141 258.9)
-
Step 800
800 (this color)
#254F90
oklch(43.4% 0.117 259)
-
Step 900
900
#224171
oklch(37.8% 0.09 258.9)
-
Step 950
950
#142642
oklch(26.9% 0.058 258.9)
#254F90 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) | #2F5592 | 0.021 |
| Deuteranopia (no green cones) | #1A4B8F | 0.016 |
| Tritanopia (no blue cones) | #005E68 | 0.092 |
| Achromatopsia (no color) | #505050 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #254F90
#254F90
oklch(43.4% 0.117 259)
- #6B4A00
#6B4A00
oklch(43.4% 0.09 79.3)
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 #254F90, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.014
- Cobalt #1E488F ΔE 0.022
- Light Navy #155084 ΔE 0.024
- Deep Sea Blue #015482 ΔE 0.035
- Light Navy Blue #2E5A88 ΔE 0.039
- Denim Blue #3B5B92 ΔE 0.045
- Twilight #4E518B ΔE 0.052
- Blueberry #464196 ΔE 0.053
Use #254F90 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.