#27BB9B
Closest named color: Greeny Blue (#42B395). oklch(71% 0.127 173.7), rgb(39, 187, 155).
Aa
Black text reads best on this color (8.66:1).
About this color
#27BB9B is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 71%, its chroma 0.127 and its hue 174°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.023 away. Black text reads best on it, at 8.66:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 8.66:1 |
| White text | 2.42:1 |
Values
| HEX | #27BB9B |
| RGB | rgb(39, 187, 155) |
| HSL | hsl(167, 65%, 44%) |
| OKLCH | oklch(71% 0.127 173.7) |
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 #27BB9B | 2.42:1 | Fails | Lc -52.2 | Large or bold text, headings |
| Black text on #27BB9B | 8.66:1 | AAA | Lc 56.8 | Large or bold text, headings |
| #27BB9B text on white | 2.42:1 | Fails | Lc 47.2 | Large or bold text, headings |
| #27BB9B text on black | 8.66:1 | AAA | Lc -54.8 | 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
#EFF8F5
oklch(97.2% 0.01 174.3)
-
Step 100
100
#DBEFE8
oklch(93.5% 0.023 172.8)
-
Step 200
200
#BCE3D7
oklch(88.5% 0.044 174.6)
-
Step 300
300
#89D2BC
oklch(80.9% 0.08 173.2)
-
Step 400
400 (this color)
#27BB9B
oklch(71% 0.127 173.7)
-
Step 500
500
#00A183
oklch(63.2% 0.121 173.2)
-
Step 600
600
#00876E
oklch(55.6% 0.106 173.6)
-
Step 700
700
#00725C
oklch(49.2% 0.094 173.1)
-
Step 800
800
#005D4B
oklch(42.7% 0.081 173.5)
-
Step 900
900
#004E3E
oklch(37.8% 0.073 172.9)
-
Step 950
950
#002E24
oklch(26.9% 0.051 173.7)
#27BB9B 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) | #B4AE99 | 0.132 |
| Deuteranopia (no green cones) | #A2A19D | 0.126 |
| Tritanopia (no blue cones) | #00BDB2 | 0.032 |
| Achromatopsia (no color) | #A6A6A6 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #27BB9B
#27BB9B
oklch(71% 0.127 173.7)
- #DE7EA8
#DE7EA8
oklch(71% 0.128 353.2)
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 #27BB9B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.023
- Topaz #13BBAF ΔE 0.029
- Green Blue #01C08D ΔE 0.030
- Light Sea Green #20B2AA ΔE 0.040
- Greenblue #23C48B ΔE 0.040
- Dark Seafoam #1FB57A ΔE 0.045
- Bluey Green #2BB179 ΔE 0.048
- Green Teal #0CB577 ΔE 0.051
Use #27BB9B 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.