#09A1EB
Closest named color: Chefchaouen Blue (#4895EF). oklch(67.6% 0.153 240), rgb(9, 161, 235).
Aa
Black text reads best on this color (7.30:1).
About this color
#09A1EB is a medium-light, vivid blue. In OKLCH its lightness is 68%, its chroma 0.153 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.040 away. Black text reads best on it, at 7.30:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.153) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.30:1 |
| White text | 2.87:1 |
Values
| HEX | #09A1EB |
| RGB | rgb(9, 161, 235) |
| HSL | hsl(200, 93%, 48%) |
| OKLCH | oklch(67.6% 0.153 240) |
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 #09A1EB | 2.87:1 | Fails | Lc -59.6 | Large or bold text, headings |
| Black text on #09A1EB | 7.30:1 | AAA | Lc 49.8 | Large or bold text, headings |
| #09A1EB text on white | 2.87:1 | Fails | Lc 54.3 | Large or bold text, headings |
| #09A1EB text on black | 7.30:1 | AAA | Lc -47.5 | 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
#BADFF9
oklch(88.6% 0.053 238.8)
-
Step 300
300
#86C9F8
oklch(80.8% 0.095 240.1)
-
Step 400
400 (this color)
#09A1EB
oklch(67.6% 0.153 240)
-
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
#006799
oklch(49% 0.112 240)
-
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)
#09A1EB 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) | #7DA2EE | 0.077 |
| Deuteranopia (no green cones) | #6190EA | 0.060 |
| Tritanopia (no blue cones) | #00B4BB | 0.102 |
| Achromatopsia (no color) | #989898 | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #09A1EB
#09A1EB
oklch(67.6% 0.153 240)
- #DA7C14
#DA7C14
oklch(67.6% 0.154 59.8)
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 #09A1EB, closest first.
No curated palette has a color within ΔE 0.04 of #09A1EB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.040
- Dark Sky Blue #448EE4 ΔE 0.051
- Cornflower Blue #6495ED ΔE 0.056
- Dodger Blue #1E90FF ΔE 0.059
- Soft Blue #6488EA ΔE 0.077
- Water Blue #0E87CC ΔE 0.079
- Deep Sky Blue #00BFFF ΔE 0.082
- Turquoise Blue #06B1C4 ΔE 0.084
Use #09A1EB 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.