#00A5FD
Closest named color: Chefchaouen Blue (#4895EF). oklch(69.5% 0.17 243.6), rgb(0, 165, 253).
Aa
Black text reads best on this color (7.80:1).
About this color
#00A5FD is a medium-light, vivid blue. In OKLCH its lightness is 69%, its chroma 0.170 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.046 away. Black text reads best on it, at 7.80:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.170) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.80:1 |
| White text | 2.69:1 |
Values
| HEX | #00A5FD |
| RGB | rgb(0, 165, 253) |
| HSL | hsl(201, 100%, 50%) |
| OKLCH | oklch(69.5% 0.17 243.6) |
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 #00A5FD | 2.69:1 | Fails | Lc -56.7 | Large or bold text, headings |
| Black text on #00A5FD | 7.80:1 | AAA | Lc 52.5 | Large or bold text, headings |
| #00A5FD text on white | 2.69:1 | Fails | Lc 51.5 | Large or bold text, headings |
| #00A5FD text on black | 7.80:1 | AAA | Lc -50.4 | 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
#EEF7FF
oklch(97.2% 0.014 244.7)
-
Step 100
100
#D9EDFD
oklch(93.6% 0.03 242)
-
Step 200
200
#B9DEFE
oklch(88.5% 0.059 244.6)
-
Step 300
300
#84C8FF
oklch(80.8% 0.104 244)
-
Step 400
400 (this color)
#00A5FD
oklch(69.5% 0.17 243.6)
-
Step 500
500
#0091DF
oklch(63.2% 0.154 243.6)
-
Step 600
600
#0079BC
oklch(55.5% 0.136 243.9)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800
#005383
oklch(42.6% 0.105 243.8)
-
Step 900
900
#00456E
oklch(37.6% 0.092 243.7)
-
Step 950
950
#002944
oklch(27% 0.066 243.6)
#00A5FD 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) | #7AA8FF | 0.072 |
| Deuteranopia (no green cones) | #5995FB | 0.052 |
| Tritanopia (no blue cones) | #00BBC5 | 0.117 |
| Achromatopsia (no color) | #9E9E9E | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00A5FD
#00A5FD
oklch(69.5% 0.17 243.6)
- #DF8300
#DF8300
oklch(69.4% 0.158 63.4)
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 #00A5FD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.046
- Dodger Blue #1E90FF ΔE 0.056
- Cornflower Blue #6495ED ΔE 0.059
- Dark Sky Blue #448EE4 ΔE 0.065
- Deep Sky Blue #00BFFF ΔE 0.071
- Soft Blue #6488EA ΔE 0.083
- Periwinkle Blue #8F99FB ΔE 0.098
- Turquoise Blue #06B1C4 ΔE 0.100
Use #00A5FD 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.