#0A63B6
Closest named color: Mid Blue (#276AB3). oklch(50% 0.151 253.4), rgb(10, 99, 182).
Aa
White text reads best on this color (6.04:1).
About this color
#0A63B6 is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.151 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.027 away. White text reads best on it, at 6.04:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.47:1 |
| White text | 6.04:1 |
Values
| HEX | #0A63B6 |
| RGB | rgb(10, 99, 182) |
| HSL | hsl(209, 90%, 38%) |
| OKLCH | oklch(50% 0.151 253.4) |
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 #0A63B6 | 6.04:1 | AA | Lc -84.8 | Fine for body text |
| Black text on #0A63B6 | 3.47:1 | AA large text | Lc 24.5 | Dividers and decoration only |
| #0A63B6 text on white | 6.04:1 | AA | Lc 79.6 | Fine for body text |
| #0A63B6 text on black | 3.47:1 | AA large text | Lc -22.2 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF8
oklch(93.6% 0.021 252.5)
-
Step 200
200
#C7DBF4
oklch(88.4% 0.041 254)
-
Step 300
300
#A0C4EF
oklch(80.9% 0.072 253.1)
-
Step 400
400
#6AA4E8
oklch(70.7% 0.117 253.3)
-
Step 500
500
#3F8BE1
oklch(63% 0.15 253.6)
-
Step 600
600
#1773CF
oklch(55.5% 0.163 253.6)
-
Step 700
700 (this color)
#0A63B6
oklch(50% 0.151 253.4)
-
Step 800
800
#0C4F91
oklch(42.7% 0.125 253.4)
-
Step 900
900
#154274
oklch(37.7% 0.098 253.8)
-
Step 950
950
#0E2744
oklch(27% 0.062 253.9)
#0A63B6 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) | #356AB9 | 0.034 |
| Deuteranopia (no green cones) | #065CB4 | 0.020 |
| Tritanopia (no blue cones) | #007783 | 0.112 |
| Achromatopsia (no color) | #636363 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A63B6
#0A63B6
oklch(50% 0.151 253.4)
- #875800
#875800
oklch(50% 0.106 73.3)
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 #0A63B6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.027
- French Blue #436BAD ΔE 0.050
- Peacock Blue #016795 ΔE 0.057
- Denim Blue #3B5B92 ΔE 0.062
- Ocean Blue #03719C ΔE 0.064
- Flat Blue #3C73A8 ΔE 0.065
- Dusky Blue #475F94 ΔE 0.066
- Muted Blue #3B719F ΔE 0.068
Use #0A63B6 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.