#27DAFD
Closest named color: Aqua Blue (#02D8E9). oklch(82% 0.14 215.6), rgb(39, 218, 253).
Aa
Black text reads best on this color (12.53:1).
About this color
#27DAFD is a light, moderately saturated teal or cyan. In OKLCH its lightness is 82%, its chroma 0.140 and its hue 216°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Blue (#02D8E9), ΔE 0.030 away. Black text reads best on it, at 12.53:1.
| Hue family | Teals and cyans |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.140) |
| Temperature | cool |
| Nearest name | Aqua Blue (#02D8E9) |
| Black text | 12.53:1 |
| White text | 1.67:1 |
Values
| HEX | #27DAFD |
| RGB | rgb(39, 218, 253) |
| HSL | hsl(190, 98%, 57%) |
| OKLCH | oklch(82% 0.14 215.6) |
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 #27DAFD | 1.67:1 | Fails | Lc -32.7 | Non-text elements, placeholder text |
| Black text on #27DAFD | 12.53:1 | AAA | Lc 74.8 | Content text, not long reading |
| #27DAFD text on white | 1.67:1 | Fails | Lc 29.0 | Dividers and decoration only |
| #27DAFD text on black | 12.53:1 | AAA | Lc -73.8 | Content text, not long reading |
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 300.
-
Step 50
50
#E8F9FD
oklch(97.1% 0.019 213.4)
-
Step 100
100
#CDF1FB
oklch(93.6% 0.04 216.4)
-
Step 200
200
#9DE7FA
oklch(88.6% 0.078 215.6)
-
Step 300
300 (this color)
#27DAFD
oklch(82% 0.14 215.6)
-
Step 400
400
#00B3D2
oklch(70.6% 0.125 216)
-
Step 500
500
#009AB4
oklch(63.2% 0.112 215.3)
-
Step 600
600
#008198
oklch(55.6% 0.099 216.1)
-
Step 700
700
#006D80
oklch(49.2% 0.087 215.3)
-
Step 800
800
#005969
oklch(42.7% 0.076 215.4)
-
Step 900
900
#004A58
oklch(37.7% 0.067 215.8)
-
Step 950
950
#002C35
oklch(27% 0.048 215.4)
#27DAFD 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) | #C2D3FF | 0.123 |
| Deuteranopia (no green cones) | #A7BFFD | 0.111 |
| Tritanopia (no blue cones) | #00E7E5 | 0.057 |
| Achromatopsia (no color) | #C8C8C8 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #27DAFD
#27DAFD
oklch(82% 0.14 215.6)
- #FFAC96
#FFAC96
oklch(82% 0.103 35.5)
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 #27DAFD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Blue #02D8E9 ΔE 0.030
- Bright Sky Blue #02CCFE ΔE 0.041
- Vivid Sky Blue #4CC9F0 ΔE 0.045
- Sky Blue #87CEEB ΔE 0.061
- Lightblue #7BC8F6 ΔE 0.061
- Light Sky Blue #87CEFA ΔE 0.062
- Sky #82CAFC ΔE 0.064
- Dark Turquoise #00CED1 ΔE 0.066
Use #27DAFD 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.