#28A2FB
Closest named color: Chefchaouen Blue (#4895EF). oklch(69.1% 0.166 246.4), rgb(40, 162, 251).
Aa
Black text reads best on this color (7.65:1).
About this color
#28A2FB is a medium-light, vivid blue. In OKLCH its lightness is 69%, its chroma 0.166 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.036 away. Black text reads best on it, at 7.65:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.166) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.65:1 |
| White text | 2.74:1 |
Values
| HEX | #28A2FB |
| RGB | rgb(40, 162, 251) |
| HSL | hsl(205, 96%, 57%) |
| OKLCH | oklch(69.1% 0.166 246.4) |
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 #28A2FB | 2.74:1 | Fails | Lc -57.8 | Large or bold text, headings |
| Black text on #28A2FB | 7.65:1 | AAA | Lc 51.5 | Large or bold text, headings |
| #28A2FB text on white | 2.74:1 | Fails | Lc 52.5 | Large or bold text, headings |
| #28A2FB text on black | 7.65:1 | AAA | Lc -49.3 | 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
#DAECFD
oklch(93.5% 0.03 246.6)
-
Step 200
200
#BBDEFE
oklch(88.6% 0.058 246.1)
-
Step 300
300
#89C7FF
oklch(80.9% 0.102 246.7)
-
Step 400
400 (this color)
#28A2FB
oklch(69.1% 0.166 246.4)
-
Step 500
500
#008FE6
oklch(63.1% 0.164 246.6)
-
Step 600
600
#0078C2
oklch(55.6% 0.145 246.5)
-
Step 700
700
#0065A4
oklch(49.2% 0.127 246.3)
-
Step 800
800
#005287
oklch(42.6% 0.111 246.5)
-
Step 900
900
#004472
oklch(37.6% 0.099 246.8)
-
Step 950
950
#002846
oklch(26.9% 0.07 246.6)
#28A2FB 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) | #77A6FF | 0.063 |
| Deuteranopia (no green cones) | #5994F9 | 0.043 |
| Tritanopia (no blue cones) | #00B8C3 | 0.117 |
| Achromatopsia (no color) | #9C9C9C | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28A2FB
#28A2FB
oklch(69.1% 0.166 246.4)
- #DA8500
#DA8500
oklch(69.1% 0.154 66.3)
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 #28A2FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.036
- Cornflower Blue #6495ED ΔE 0.049
- Dodger Blue #1E90FF ΔE 0.050
- Dark Sky Blue #448EE4 ΔE 0.057
- Soft Blue #6488EA ΔE 0.073
- Deep Sky Blue #00BFFF ΔE 0.077
- Periwinkle Blue #8F99FB ΔE 0.090
- Water Blue #0E87CC ΔE 0.096
Use #28A2FB 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.