#254DB5
Closest named color: Blue Blue (#2242C7). oklch(45.8% 0.171 264.5), rgb(37, 77, 181).
Aa
White text reads best on this color (7.48:1).
About this color
#254DB5 is a medium-dark, vivid blue. In OKLCH its lightness is 46%, its chroma 0.171 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.038 away. White text reads best on it, at 7.48:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.171) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.80:1 |
| White text | 7.48:1 |
Values
| HEX | #254DB5 |
| RGB | rgb(37, 77, 181) |
| HSL | hsl(223, 66%, 43%) |
| OKLCH | oklch(45.8% 0.171 264.5) |
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 #254DB5 | 7.48:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #254DB5 | 2.80:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #254DB5 text on white | 7.48:1 | AAA | Lc 85.4 | Fine for body text |
| #254DB5 text on black | 2.80:1 | Fails | Lc -16.6 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFE
oklch(93.6% 0.029 264.4)
-
Step 200
200
#C7D9FF
oklch(88.4% 0.056 265.2)
-
Step 300
300
#A2C0FF
oklch(80.9% 0.096 264.7)
-
Step 400
400
#709DFF
oklch(70.7% 0.152 264.2)
-
Step 500
500
#4B80FF
oklch(63.1% 0.197 264.4)
-
Step 600
600
#2E63F3
oklch(55.5% 0.223 264.6)
-
Step 700
700
#2251D3
oklch(49.1% 0.206 264.5)
-
Step 800
800 (this color)
#254DB5
oklch(45.8% 0.171 264.5)
-
Step 900
900
#1C3B87
oklch(37.8% 0.133 264.2)
-
Step 950
950
#11234F
oklch(27% 0.084 264.6)
#254DB5 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) | #005CB9 | 0.038 |
| Deuteranopia (no green cones) | #004EB3 | 0.019 |
| Tritanopia (no blue cones) | #006779 | 0.134 |
| Achromatopsia (no color) | #555555 | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #254DB5
#254DB5
oklch(45.8% 0.171 264.5)
- #705200
#705200
oklch(45.8% 0.094 84.1)
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 #254DB5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.038
- Sapphire #2138AB ΔE 0.053
- Majorelle Blue #3F37C9 ΔE 0.058
- Cobalt #1E488F ΔE 0.063
- Blueberry #464196 ΔE 0.065
- Dusk Blue #26538D ΔE 0.069
- Blue With A Hint Of Purple #533CC6 ΔE 0.069
- Denim Blue #3B5B92 ΔE 0.076
Use #254DB5 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.