#28BAF6
Closest named color: Deep Sky Blue (#00BFFF). oklch(74.3% 0.143 232.2), rgb(40, 186, 246).
Aa
Black text reads best on this color (9.44:1).
About this color
#28BAF6 is a medium-light, vivid blue. In OKLCH its lightness is 74%, its chroma 0.143 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.016 away. Black text reads best on it, at 9.44:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 9.44:1 |
| White text | 2.22:1 |
Values
| HEX | #28BAF6 |
| RGB | rgb(40, 186, 246) |
| HSL | hsl(197, 92%, 56%) |
| OKLCH | oklch(74.3% 0.143 232.2) |
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 #28BAF6 | 2.22:1 | Fails | Lc -48.0 | Large or bold text, headings |
| Black text on #28BAF6 | 9.44:1 | AAA | Lc 60.7 | Content text, not long reading |
| #28BAF6 text on white | 2.22:1 | Fails | Lc 43.3 | Non-text elements, placeholder text |
| #28BAF6 text on black | 9.44:1 | AAA | Lc -58.9 | 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
#EEF7FC
oklch(97.1% 0.012 231.7)
-
Step 100
100
#DAEDF9
oklch(93.6% 0.026 235.4)
-
Step 200
200
#B9E0F5
oklch(88.6% 0.05 231.6)
-
Step 300
300
#83CBF1
oklch(80.9% 0.09 232.5)
-
Step 400
400 (this color)
#28BAF6
oklch(74.3% 0.143 232.2)
-
Step 500
500
#0096CA
oklch(63.2% 0.129 232.1)
-
Step 600
600
#007EAA
oklch(55.7% 0.113 231.8)
-
Step 700
700
#006A90
oklch(49.2% 0.1 232)
-
Step 800
800
#005676
oklch(42.6% 0.087 232.3)
-
Step 900
900
#004863
oklch(37.7% 0.077 231.8)
-
Step 950
950
#002B3D
oklch(27.1% 0.055 231.9)
#28BAF6 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) | #9CB8F9 | 0.093 |
| Deuteranopia (no green cones) | #81A6F5 | 0.077 |
| Tritanopia (no blue cones) | #00CACE | 0.085 |
| Achromatopsia (no color) | #AEAEAE | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28BAF6
#28BAF6
oklch(74.3% 0.143 232.2)
- #F18F4F
#F18F4F
oklch(74.2% 0.143 51.9)
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 #28BAF6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.016
- Bright Sky Blue #02CCFE ΔE 0.048
- Vivid Sky Blue #4CC9F0 ΔE 0.050
- Lightblue #7BC8F6 ΔE 0.072
- Carolina Blue #8AB8FE ΔE 0.074
- Turquoise Blue #06B1C4 ΔE 0.075
- Sky #82CAFC ΔE 0.081
- Dark Turquoise #00CED1 ΔE 0.089
Use #28BAF6 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.