#03ABFB
Closest named color: Deep Sky Blue (#00BFFF). oklch(70.7% 0.163 240.4), rgb(3, 171, 251).
Aa
Black text reads best on this color (8.22:1).
About this color
#03ABFB is a medium-light, vivid blue. In OKLCH its lightness is 71%, its chroma 0.163 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.054 away. Black text reads best on it, at 8.22:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 8.22:1 |
| White text | 2.55:1 |
Values
| HEX | #03ABFB |
| RGB | rgb(3, 171, 251) |
| HSL | hsl(199, 98%, 50%) |
| OKLCH | oklch(70.7% 0.163 240.4) |
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 #03ABFB | 2.55:1 | Fails | Lc -54.4 | Large or bold text, headings |
| Black text on #03ABFB | 8.22:1 | AAA | Lc 54.7 | Large or bold text, headings |
| #03ABFB text on white | 2.55:1 | Fails | Lc 49.3 | Large or bold text, headings |
| #03ABFB text on black | 8.22:1 | AAA | Lc -52.7 | 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
#D9EDFC
oklch(93.6% 0.029 240.2)
-
Step 200
200
#B8DFFB
oklch(88.5% 0.056 239.5)
-
Step 300
300
#82C9FC
oklch(80.8% 0.102 240.9)
-
Step 400
400 (this color)
#03ABFB
oklch(70.7% 0.163 240.4)
-
Step 500
500
#0092D8
oklch(63% 0.146 240.6)
-
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
#00547F
oklch(42.6% 0.099 240.7)
-
Step 900
900
#00466B
oklch(37.7% 0.087 240.8)
-
Step 950
950
#002942
oklch(26.9% 0.063 241.6)
#03ABFB 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) | #84ADFE | 0.080 |
| Deuteranopia (no green cones) | #6599FA | 0.062 |
| Tritanopia (no blue cones) | #00BFC8 | 0.107 |
| Achromatopsia (no color) | #A2A2A2 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03ABFB
#03ABFB
oklch(70.7% 0.163 240.4)
- #E8840C
#E8840C
oklch(70.8% 0.163 60.3)
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 #03ABFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.054
- Chefchaouen Blue #4895EF ΔE 0.058
- Cornflower Blue #6495ED ΔE 0.068
- Dodger Blue #1E90FF ΔE 0.073
- Dark Sky Blue #448EE4 ΔE 0.078
- Turquoise Blue #06B1C4 ΔE 0.089
- Bright Sky Blue #02CCFE ΔE 0.091
- Soft Blue #6488EA ΔE 0.095
Use #03ABFB 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.