#254CA7
Closest named color: Cobalt (#1E488F). oklch(44.4% 0.153 263.8), rgb(37, 76, 167).
Aa
White text reads best on this color (7.86:1).
About this color
#254CA7 is a dark, vivid blue. In OKLCH its lightness is 44%, its chroma 0.153 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.041 away. White text reads best on it, at 7.86:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | vivid (0.153) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.67:1 |
| White text | 7.86:1 |
Values
| HEX | #254CA7 |
| RGB | rgb(37, 76, 167) |
| HSL | hsl(222, 64%, 40%) |
| OKLCH | oklch(44.4% 0.153 263.8) |
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 #254CA7 | 7.86:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #254CA7 | 2.67:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #254CA7 text on white | 7.86:1 | AAA | Lc 86.8 | Fine for body text |
| #254CA7 text on black | 2.67:1 | Fails | Lc -15.3 | Dividers and decoration only |
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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C8DAFB
oklch(88.5% 0.05 262.6)
-
Step 300
300
#A3C1FB
oklch(81% 0.089 263.3)
-
Step 400
400
#729EFA
oklch(70.8% 0.144 263.8)
-
Step 500
500
#4E82F7
oklch(63.1% 0.184 263.9)
-
Step 600
600
#3368E6
oklch(55.6% 0.2 263.8)
-
Step 700
700
#2656C8
oklch(49.2% 0.185 263.7)
-
Step 800
800 (this color)
#254CA7
oklch(44.4% 0.153 263.8)
-
Step 900
900
#1F3D80
oklch(37.8% 0.119 263.6)
-
Step 950
950
#13244B
oklch(27% 0.076 264.2)
#254CA7 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) | #0058AA | 0.033 |
| Deuteranopia (no green cones) | #004CA5 | 0.020 |
| Tritanopia (no blue cones) | #006272 | 0.119 |
| Achromatopsia (no color) | #525252 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #254CA7
#254CA7
oklch(44.4% 0.153 263.8)
- #6B4E00
#6B4E00
oklch(44.3% 0.091 83.8)
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 #254CA7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.041
- Dusk Blue #26538D ΔE 0.049
- Sapphire #2138AB ΔE 0.050
- Blueberry #464196 ΔE 0.051
- Blue Blue #2242C7 ΔE 0.056
- Light Navy #155084 ΔE 0.062
- Denim Blue #3B5B92 ΔE 0.064
- Dark Slate Blue #483D8B ΔE 0.068
Use #254CA7 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.