#27A3B7
Closest named color: Turquoise Blue (#06B1C4). oklch(66% 0.106 211.3), rgb(39, 163, 183).
Aa
Black text reads best on this color (7.00:1).
About this color
#27A3B7 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.106 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.039 away. Black text reads best on it, at 7.00:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.00:1 |
| White text | 2.99:1 |
Values
| HEX | #27A3B7 |
| RGB | rgb(39, 163, 183) |
| HSL | hsl(188, 65%, 44%) |
| OKLCH | oklch(66% 0.106 211.3) |
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 #27A3B7 | 2.99:1 | Fails | Lc -61.6 | Content text, not long reading |
| Black text on #27A3B7 | 7.00:1 | AAA | Lc 47.8 | Large or bold text, headings |
| #27A3B7 text on white | 2.99:1 | Fails | Lc 56.2 | Large or bold text, headings |
| #27A3B7 text on black | 7.00:1 | AAA | Lc -45.6 | 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 500.
-
Step 50
50
#F0F7F8
oklch(97.1% 0.008 207.1)
-
Step 100
100
#DFEDF0
oklch(93.7% 0.015 212)
-
Step 200
200
#C4DFE4
oklch(88.5% 0.029 210)
-
Step 300
300
#9ACAD4
oklch(80.9% 0.052 211.8)
-
Step 400
400
#5DAFBE
oklch(70.8% 0.083 210.8)
-
Step 500
500 (this color)
#27A3B7
oklch(66% 0.106 211.3)
-
Step 600
600
#008294
oklch(55.7% 0.097 211.6)
-
Step 700
700
#006D7C
oklch(49% 0.085 211.2)
-
Step 800
800
#005966
oklch(42.6% 0.074 211.8)
-
Step 900
900
#004B55
oklch(37.8% 0.065 210)
-
Step 950
950
#042C33
oklch(27% 0.044 212.2)
#27A3B7 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) | #939DB8 | 0.098 |
| Deuteranopia (no green cones) | #808FB7 | 0.090 |
| Tritanopia (no blue cones) | #00ABA9 | 0.037 |
| Achromatopsia (no color) | #959595 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #27A3B7
#27A3B7
oklch(66% 0.106 211.3)
- #CB7969
#CB7969
oklch(66.1% 0.106 31.9)
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 #27A3B7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.039
- Cadet Blue #5F9EA0 ΔE 0.045
- Light Sea Green #20B2AA ΔE 0.054
- Sea #3C9992 ΔE 0.054
- Persian Green #2A9D8F ΔE 0.059
- Greyblue #77A1B5 ΔE 0.062
- Dull Teal #5F9E8F ΔE 0.063
- Teal Green #0A9396 ΔE 0.063
Use #27A3B7 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.