#0A64A8
Closest named color: Mid Blue (#276AB3). oklch(49.3% 0.132 249.1), rgb(10, 100, 168).
Aa
White text reads best on this color (6.17:1).
About this color
#0A64A8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.132 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.029 away. White text reads best on it, at 6.17:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.40:1 |
| White text | 6.17:1 |
Values
| HEX | #0A64A8 |
| RGB | rgb(10, 100, 168) |
| HSL | hsl(206, 89%, 35%) |
| OKLCH | oklch(49.3% 0.132 249.1) |
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 #0A64A8 | 6.17:1 | AA | Lc -85.4 | Fine for body text |
| Black text on #0A64A8 | 3.40:1 | AA large text | Lc 23.8 | Dividers and decoration only |
| #0A64A8 text on white | 6.17:1 | AA | Lc 80.2 | Fine for body text |
| #0A64A8 text on black | 3.40:1 | AA large text | Lc -21.6 | 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 700.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF6
oklch(93.6% 0.018 250.6)
-
Step 200
200
#C8DCF0
oklch(88.6% 0.035 248.2)
-
Step 300
300
#A1C5E9
oklch(81% 0.064 248.6)
-
Step 400
400
#6DA6DE
oklch(70.8% 0.102 249)
-
Step 500
500
#428ED5
oklch(63.1% 0.131 249.3)
-
Step 600
600
#1B77C2
oklch(55.7% 0.142 249)
-
Step 700
700 (this color)
#0A64A8
oklch(49.3% 0.132 249.1)
-
Step 800
800
#0F5188
oklch(42.6% 0.11 249.6)
-
Step 900
900
#16446C
oklch(37.7% 0.085 248.5)
-
Step 950
950
#0F2840
oklch(27% 0.055 249.7)
#0A64A8 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) | #4268AB | 0.042 |
| Deuteranopia (no green cones) | #285BA7 | 0.026 |
| Tritanopia (no blue cones) | #00747E | 0.093 |
| Achromatopsia (no color) | #616161 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A64A8
#0A64A8
oklch(49.3% 0.132 249.1)
- #885400
#885400
oklch(49.3% 0.108 69)
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 #0A64A8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.029
- Peacock Blue #016795 ΔE 0.034
- Denim Blue #3B5B92 ΔE 0.046
- Ocean Blue #03719C ΔE 0.046
- French Blue #436BAD ΔE 0.047
- Dusky Blue #475F94 ΔE 0.051
- Denim #3B638C ΔE 0.052
- Light Navy Blue #2E5A88 ΔE 0.055
Use #0A64A8 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.