#0A64BA
Closest named color: Mid Blue (#276AB3). oklch(50.5% 0.155 253.9), rgb(10, 100, 186).
Aa
White text reads best on this color (5.92:1).
About this color
#0A64BA is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.155 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.026 away. White text reads best on it, at 5.92:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.155) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.54:1 |
| White text | 5.92:1 |
Values
| HEX | #0A64BA |
| RGB | rgb(10, 100, 186) |
| HSL | hsl(209, 90%, 38%) |
| OKLCH | oklch(50.5% 0.155 253.9) |
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 #0A64BA | 5.92:1 | AA | Lc -84.2 | Fine for body text |
| Black text on #0A64BA | 3.54:1 | AA large text | Lc 25.1 | Dividers and decoration only |
| #0A64BA text on white | 5.92:1 | AA | Lc 79.0 | Fine for body text |
| #0A64BA text on black | 3.54:1 | AA large text | Lc -22.8 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF9
oklch(93.6% 0.022 254.4)
-
Step 200
200
#C7DBF5
oklch(88.5% 0.042 255)
-
Step 300
300
#9FC4F1
oklch(80.9% 0.075 253.6)
-
Step 400
400
#69A4EA
oklch(70.8% 0.12 253.6)
-
Step 500
500
#3D8BE3
oklch(63.1% 0.153 253.7)
-
Step 600
600
#1473D1
oklch(55.6% 0.166 253.7)
-
Step 700
700 (this color)
#0A64BA
oklch(50.5% 0.155 253.9)
-
Step 800
800
#0A4F93
oklch(42.8% 0.128 253.7)
-
Step 900
900
#144275
oklch(37.7% 0.1 253.9)
-
Step 950
950
#0D2744
oklch(27% 0.063 253.3)
#0A64BA 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) | #346CBD | 0.035 |
| Deuteranopia (no green cones) | #005DB8 | 0.020 |
| Tritanopia (no blue cones) | #007986 | 0.115 |
| Achromatopsia (no color) | #646464 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A64BA
#0A64BA
oklch(50.5% 0.155 253.9)
- #895A00
#895A00
oklch(50.7% 0.107 73.9)
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 #0A64BA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.026
- French Blue #436BAD ΔE 0.050
- Peacock Blue #016795 ΔE 0.062
- Windows Blue #3778BF ΔE 0.065
- Flat Blue #3C73A8 ΔE 0.066
- Ocean Blue #03719C ΔE 0.066
- Denim Blue #3B5B92 ΔE 0.068
- Nice Blue #107AB0 ΔE 0.068
Use #0A64BA 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.