#00A9FD
Closest named color: Chefchaouen Blue (#4895EF). oklch(70.4% 0.167 241.9), rgb(0, 169, 253).
Aa
Black text reads best on this color (8.09:1).
About this color
#00A9FD is a medium-light, vivid blue. In OKLCH its lightness is 70%, its chroma 0.167 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.054 away. Black text reads best on it, at 8.09:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.167) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 8.09:1 |
| White text | 2.59:1 |
Values
| HEX | #00A9FD |
| RGB | rgb(0, 169, 253) |
| HSL | hsl(200, 100%, 50%) |
| OKLCH | oklch(70.4% 0.167 241.9) |
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 #00A9FD | 2.59:1 | Fails | Lc -55.1 | Large or bold text, headings |
| Black text on #00A9FD | 8.09:1 | AAA | Lc 54.1 | Large or bold text, headings |
| #00A9FD text on white | 2.59:1 | Fails | Lc 49.9 | Large or bold text, headings |
| #00A9FD text on black | 8.09:1 | AAA | Lc -52.0 | 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
#EEF7FE
oklch(97.1% 0.013 241)
-
Step 100
100
#D9EDFD
oklch(93.6% 0.03 242)
-
Step 200
200
#B8DFFD
oklch(88.6% 0.058 241.4)
-
Step 300
300
#82C9FE
oklch(80.9% 0.104 241.9)
-
Step 400
400 (this color)
#00A9FD
oklch(70.4% 0.167 241.9)
-
Step 500
500
#0092DB
oklch(63.2% 0.149 241.7)
-
Step 600
600
#007AB9
oklch(55.5% 0.132 242.1)
-
Step 700
700
#00679C
oklch(49.2% 0.116 241.5)
-
Step 800
800
#005481
oklch(42.7% 0.101 241.9)
-
Step 900
900
#00466C
oklch(37.7% 0.089 241.5)
-
Step 950
950
#002943
oklch(27% 0.065 242.6)
#00A9FD 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) | #80ABFF | 0.077 |
| Deuteranopia (no green cones) | #6098FB | 0.057 |
| Tritanopia (no blue cones) | #00BEC7 | 0.112 |
| Achromatopsia (no color) | #A1A1A1 | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00A9FD
#00A9FD
oklch(70.4% 0.167 241.9)
- #E58400
#E58400
oklch(70.3% 0.162 61.9)
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 #00A9FD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.054
- Deep Sky Blue #00BFFF ΔE 0.060
- Cornflower Blue #6495ED ΔE 0.065
- Dodger Blue #1E90FF ΔE 0.067
- Dark Sky Blue #448EE4 ΔE 0.074
- Soft Blue #6488EA ΔE 0.091
- Turquoise Blue #06B1C4 ΔE 0.094
- Bright Sky Blue #02CCFE ΔE 0.097
Use #00A9FD 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.