#27BCDE
Closest named color: Turquoise Blue (#06B1C4). oklch(73.7% 0.125 218.1), rgb(39, 188, 222).
Aa
Black text reads best on this color (9.33:1).
About this color
#27BCDE is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.125 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.046 away. Black text reads best on it, at 9.33:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 9.33:1 |
| White text | 2.24:1 |
Values
| HEX | #27BCDE |
| RGB | rgb(39, 188, 222) |
| HSL | hsl(191, 73%, 51%) |
| OKLCH | oklch(73.7% 0.125 218.1) |
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 #27BCDE | 2.24:1 | Fails | Lc -48.6 | Large or bold text, headings |
| Black text on #27BCDE | 9.33:1 | AAA | Lc 60.1 | Content text, not long reading |
| #27BCDE text on white | 2.24:1 | Fails | Lc 43.9 | Non-text elements, placeholder text |
| #27BCDE text on black | 9.33:1 | AAA | Lc -58.3 | 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
#EEF7FA
oklch(97% 0.01 219.6)
-
Step 100
100
#DAEEF4
oklch(93.6% 0.023 217.6)
-
Step 200
200
#BAE1EC
oklch(88.5% 0.043 216.7)
-
Step 300
300
#85CDE2
oklch(80.8% 0.078 218.2)
-
Step 400
400 (this color)
#27BCDE
oklch(73.7% 0.125 218.1)
-
Step 500
500
#0099B7
oklch(63.1% 0.114 218.3)
-
Step 600
600
#00819A
oklch(55.7% 0.1 217.7)
-
Step 700
700
#006C82
oklch(49.1% 0.088 218.4)
-
Step 800
800
#00596B
oklch(42.8% 0.077 217.7)
-
Step 900
900
#004A59
oklch(37.7% 0.067 217.2)
-
Step 950
950
#002C36
oklch(27% 0.048 217.4)
#27BCDE 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) | #A6B6E0 | 0.107 |
| Deuteranopia (no green cones) | #8FA5DE | 0.096 |
| Tritanopia (no blue cones) | #00C7C7 | 0.053 |
| Achromatopsia (no color) | #ADADAD | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #27BCDE
#27BCDE
oklch(73.7% 0.125 218.1)
- #ED8C6E
#ED8C6E
oklch(73.6% 0.126 38)
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 #27BCDE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.046
- Vivid Sky Blue #4CC9F0 ΔE 0.047
- Deep Sky Blue #00BFFF ΔE 0.047
- Bright Sky Blue #02CCFE ΔE 0.055
- Dark Turquoise #00CED1 ΔE 0.060
- Topaz #13BBAF ΔE 0.071
- Medium Turquoise #48D1CC ΔE 0.075
- Aqua Blue #02D8E9 ΔE 0.076
Use #27BCDE 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.