#0D57B5
Closest named color: Blue Blue (#2242C7). oklch(47.3% 0.164 257.8), rgb(13, 87, 181).
Aa
White text reads best on this color (6.89:1).
About this color
#0D57B5 is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.164 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.057 away. White text reads best on it, at 6.89:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.164) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.04:1 |
| White text | 6.89:1 |
Values
| HEX | #0D57B5 |
| RGB | rgb(13, 87, 181) |
| HSL | hsl(214, 87%, 38%) |
| OKLCH | oklch(47.3% 0.164 257.8) |
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 #0D57B5 | 6.89:1 | AA | Lc -88.2 | Fine for body text |
| Black text on #0D57B5 | 3.04:1 | AA large text | Lc 20.9 | Dividers and decoration only |
| #0D57B5 text on white | 6.89:1 | AA | Lc 83.1 | Fine for body text |
| #0D57B5 text on black | 3.04:1 | AA large text | Lc -18.8 | 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 700.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBFA
oklch(93.7% 0.023 258.4)
-
Step 200
200
#C7DBF7
oklch(88.5% 0.044 256.8)
-
Step 300
300
#A1C3F4
oklch(81% 0.079 257.5)
-
Step 400
400
#6DA2EF
oklch(70.8% 0.127 257.7)
-
Step 500
500
#4488E9
oklch(63% 0.162 257.7)
-
Step 600
600
#236FD8
oklch(55.5% 0.177 257.9)
-
Step 700
700 (this color)
#0D57B5
oklch(47.3% 0.164 257.8)
-
Step 800
800
#154C97
oklch(42.7% 0.135 257.8)
-
Step 900
900
#194078
oklch(37.6% 0.105 257.9)
-
Step 950
950
#102646
oklch(27% 0.066 257.9)
#0D57B5 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) | #1262B8 | 0.030 |
| Deuteranopia (no green cones) | #0053B3 | 0.013 |
| Tritanopia (no blue cones) | #006E7D | 0.124 |
| Achromatopsia (no color) | #5A5A5A | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0D57B5
#0D57B5
oklch(47.3% 0.164 257.8)
- #7A5300
#7A5300
oklch(47.3% 0.099 77.4)
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 #0D57B5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.057
- Mid Blue #276AB3 ΔE 0.057
- Dusk Blue #26538D ΔE 0.064
- Denim Blue #3B5B92 ΔE 0.067
- Cobalt #1E488F ΔE 0.070
- Peacock Blue #016795 ΔE 0.074
- Sapphire #2138AB ΔE 0.075
- French Blue #436BAD ΔE 0.076
Use #0D57B5 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.