#008AE5
Closest named color: Dark Sky Blue (#448EE4). oklch(61.9% 0.168 248.4), rgb(0, 138, 229).
Aa
Black text reads best on this color (5.76:1).
About this color
#008AE5 is a medium-dark, vivid blue. In OKLCH its lightness is 62%, its chroma 0.168 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.032 away. Black text reads best on it, at 5.76:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.168) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.76:1 |
| White text | 3.64:1 |
Values
| HEX | #008AE5 |
| RGB | rgb(0, 138, 229) |
| HSL | hsl(204, 100%, 45%) |
| OKLCH | oklch(61.9% 0.168 248.4) |
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 #008AE5 | 3.64:1 | AA large text | Lc -68.7 | Content text, not long reading |
| Black text on #008AE5 | 5.76:1 | AA | Lc 40.8 | Non-text elements, placeholder text |
| #008AE5 text on white | 3.64:1 | AA large text | Lc 63.3 | Content text, not long reading |
| #008AE5 text on black | 5.76:1 | AA | Lc -38.4 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEECF9
oklch(93.6% 0.023 246)
-
Step 200
200
#C2DCF7
oklch(88.4% 0.047 249.4)
-
Step 300
300
#97C6F4
oklch(81% 0.082 248.3)
-
Step 400
400
#58A6EE
oklch(70.6% 0.131 248.5)
-
Step 500
500 (this color)
#008AE5
oklch(61.9% 0.168 248.4)
-
Step 600
600
#0077C6
oklch(55.6% 0.15 248.2)
-
Step 700
700
#0064A8
oklch(49.2% 0.133 248.3)
-
Step 800
800
#00518B
oklch(42.6% 0.117 248.8)
-
Step 900
900
#004475
oklch(37.8% 0.103 248.3)
-
Step 950
950
#032846
oklch(27% 0.069 248.1)
#008AE5 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) | #5C90E9 | 0.056 |
| Deuteranopia (no green cones) | #387EE3 | 0.034 |
| Tritanopia (no blue cones) | #00A0AC | 0.120 |
| Achromatopsia (no color) | #868686 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #008AE5
#008AE5
oklch(61.9% 0.168 248.4)
- #BA7400
#BA7400
oklch(62% 0.135 68.5)
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 #008AE5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.032
- Water Blue #0E87CC ΔE 0.038
- Dodger Blue #1E90FF ΔE 0.042
- Chefchaouen Blue #4895EF ΔE 0.049
- Clear Blue #247AFD ΔE 0.058
- Soft Blue #6488EA ΔE 0.060
- Windows Blue #3778BF ΔE 0.068
- Cornflower Blue #6495ED ΔE 0.071
Use #008AE5 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.