#10A0E9
Closest named color: Chefchaouen Blue (#4895EF). oklch(67.3% 0.151 240.1), rgb(16, 160, 233).
Aa
Black text reads best on this color (7.22:1).
About this color
#10A0E9 is a medium-light, vivid blue. In OKLCH its lightness is 67%, its chroma 0.151 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.039 away. Black text reads best on it, at 7.22:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.22:1 |
| White text | 2.90:1 |
Values
| HEX | #10A0E9 |
| RGB | rgb(16, 160, 233) |
| HSL | hsl(200, 87%, 49%) |
| OKLCH | oklch(67.3% 0.151 240.1) |
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 #10A0E9 | 2.90:1 | Fails | Lc -60.1 | Content text, not long reading |
| Black text on #10A0E9 | 7.22:1 | AAA | Lc 49.3 | Large or bold text, headings |
| #10A0E9 text on white | 2.90:1 | Fails | Lc 54.8 | Large or bold text, headings |
| #10A0E9 text on black | 7.22:1 | AAA | Lc -47.0 | Large or bold text, headings |
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 400.
-
Step 50
50
#EEF7FD
oklch(97.1% 0.013 236.6)
-
Step 100
100
#DAEDFB
oklch(93.6% 0.028 239.7)
-
Step 200
200
#BBDFF9
oklch(88.6% 0.052 239.6)
-
Step 300
300
#87C9F8
oklch(80.9% 0.095 240.4)
-
Step 400
400 (this color)
#10A0E9
oklch(67.3% 0.151 240.1)
-
Step 500
500
#0093D7
oklch(63.2% 0.144 239.7)
-
Step 600
600
#007BB6
oklch(55.6% 0.128 240.2)
-
Step 700
700
#00679A
oklch(49.1% 0.113 240.5)
-
Step 800
800
#00557F
oklch(42.8% 0.098 239.8)
-
Step 900
900
#00466A
oklch(37.6% 0.086 240.1)
-
Step 950
950
#002A41
oklch(27.1% 0.061 239)
#10A0E9 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) | #7DA1EC | 0.076 |
| Deuteranopia (no green cones) | #618FE8 | 0.060 |
| Tritanopia (no blue cones) | #00B2BA | 0.099 |
| Achromatopsia (no color) | #979797 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #10A0E9
#10A0E9
oklch(67.3% 0.151 240.1)
- #D87C17
#D87C17
oklch(67.3% 0.151 60.1)
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 #10A0E9, closest first.
No curated palette has a color within ΔE 0.04 of #10A0E9.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.039
- Dark Sky Blue #448EE4 ΔE 0.049
- Cornflower Blue #6495ED ΔE 0.055
- Dodger Blue #1E90FF ΔE 0.059
- Soft Blue #6488EA ΔE 0.076
- Water Blue #0E87CC ΔE 0.076
- Turquoise Blue #06B1C4 ΔE 0.083
- Faded Blue #658CBB ΔE 0.085
Use #10A0E9 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.