#37B2DA
Closest named color: Turquoise Blue (#06B1C4). oklch(71.4% 0.119 224.4), rgb(55, 178, 218).
Aa
Black text reads best on this color (8.54:1).
About this color
#37B2DA is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 71%, its chroma 0.119 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.038 away. Black text reads best on it, at 8.54:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 8.54:1 |
| White text | 2.45:1 |
Values
| HEX | #37B2DA |
| RGB | rgb(55, 178, 218) |
| HSL | hsl(195, 69%, 54%) |
| OKLCH | oklch(71.4% 0.119 224.4) |
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 #37B2DA | 2.45:1 | Fails | Lc -53.0 | Large or bold text, headings |
| Black text on #37B2DA | 8.54:1 | AAA | Lc 56.0 | Large or bold text, headings |
| #37B2DA text on white | 2.45:1 | Fails | Lc 48.0 | Large or bold text, headings |
| #37B2DA text on black | 8.54:1 | AAA | Lc -54.0 | 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
#EFF7FA
oklch(97.1% 0.009 222.1)
-
Step 100
100
#DBEDF5
oklch(93.5% 0.022 226.1)
-
Step 200
200
#BDE0EE
oklch(88.6% 0.042 224)
-
Step 300
300
#8BCBE5
oklch(80.8% 0.075 225.4)
-
Step 400
400 (this color)
#37B2DA
oklch(71.4% 0.119 224.4)
-
Step 500
500
#0098BF
oklch(63.2% 0.119 224.4)
-
Step 600
600
#007FA1
oklch(55.5% 0.105 225)
-
Step 700
700
#006B88
oklch(49.1% 0.093 224.9)
-
Step 800
800
#005870
oklch(42.8% 0.081 224.4)
-
Step 900
900
#00495E
oklch(37.7% 0.071 225)
-
Step 950
950
#002B39
oklch(26.9% 0.051 225.5)
#37B2DA 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) | #9CAEDC | 0.093 |
| Deuteranopia (no green cones) | #869EDA | 0.082 |
| Tritanopia (no blue cones) | #00BEBF | 0.062 |
| Achromatopsia (no color) | #A5A5A5 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37B2DA
#37B2DA
oklch(71.4% 0.119 224.4)
- #E08963
#E08963
oklch(71.3% 0.119 44)
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 #37B2DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.038
- Deep Sky Blue #00BFFF ΔE 0.056
- Vivid Sky Blue #4CC9F0 ΔE 0.069
- Greyblue #77A1B5 ΔE 0.071
- Light Sea Green #20B2AA ΔE 0.075
- Bright Sky Blue #02CCFE ΔE 0.076
- Topaz #13BBAF ΔE 0.078
- Bluegrey #85A3B2 ΔE 0.081
Use #37B2DA 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.