#27ABB4
Closest named color: Turquoise Blue (#06B1C4). oklch(67.8% 0.107 202), rgb(39, 171, 180).
Aa
Black text reads best on this color (7.57:1).
About this color
#27ABB4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 68%, its chroma 0.107 and its hue 202°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.025 away. Black text reads best on it, at 7.57:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.57:1 |
| White text | 2.77:1 |
Values
| HEX | #27ABB4 |
| RGB | rgb(39, 171, 180) |
| HSL | hsl(184, 64%, 43%) |
| OKLCH | oklch(67.8% 0.107 202) |
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 #27ABB4 | 2.77:1 | Fails | Lc -58.3 | Large or bold text, headings |
| Black text on #27ABB4 | 7.57:1 | AAA | Lc 51.0 | Large or bold text, headings |
| #27ABB4 text on white | 2.77:1 | Fails | Lc 53.1 | Large or bold text, headings |
| #27ABB4 text on black | 7.57:1 | AAA | Lc -48.8 | 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
#EFF7F8
oklch(97% 0.009 205.9)
-
Step 100
100
#DCEEEF
oklch(93.6% 0.019 200.9)
-
Step 200
200
#BEE1E4
oklch(88.5% 0.037 202.9)
-
Step 300
300
#8CCED3
oklch(80.9% 0.067 201.9)
-
Step 400
400 (this color)
#27ABB4
oklch(67.8% 0.107 202)
-
Step 500
500
#009CA5
oklch(63.1% 0.107 202)
-
Step 600
600
#00838B
oklch(55.5% 0.095 202.3)
-
Step 700
700
#006E75
oklch(49% 0.083 202.5)
-
Step 800
800
#005A60
oklch(42.6% 0.073 202.7)
-
Step 900
900
#004B50
oklch(37.6% 0.064 202.5)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#27ABB4 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) | #9DA3B5 | 0.108 |
| Deuteranopia (no green cones) | #8A95B5 | 0.100 |
| Tritanopia (no blue cones) | #00B2AD | 0.027 |
| Achromatopsia (no color) | #9B9B9B | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #27ABB4
#27ABB4
oklch(67.8% 0.107 202)
- #D27C7A
#D27C7A
oklch(67.9% 0.108 21.7)
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 #27ABB4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.025
- Light Sea Green #20B2AA ΔE 0.029
- Cadet Blue #5F9EA0 ΔE 0.047
- Topaz #13BBAF ΔE 0.050
- Greeny Blue #42B395 ΔE 0.059
- Persian Green #2A9D8F ΔE 0.059
- Dull Teal #5F9E8F ΔE 0.059
- Sea #3C9992 ΔE 0.061
Use #27ABB4 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.