#37A2BF
Closest named color: Turquoise Blue (#06B1C4). oklch(66.4% 0.104 219.7), rgb(55, 162, 191).
Aa
Black text reads best on this color (7.08:1).
About this color
#37A2BF is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.104 and its hue 220°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.042 away. Black text reads best on it, at 7.08:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.08:1 |
| White text | 2.96:1 |
Values
| HEX | #37A2BF |
| RGB | rgb(55, 162, 191) |
| HSL | hsl(193, 55%, 48%) |
| OKLCH | oklch(66.4% 0.104 219.7) |
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 #37A2BF | 2.96:1 | Fails | Lc -61.2 | Content text, not long reading |
| Black text on #37A2BF | 7.08:1 | AAA | Lc 48.2 | Large or bold text, headings |
| #37A2BF text on white | 2.96:1 | Fails | Lc 55.9 | Large or bold text, headings |
| #37A2BF text on black | 7.08:1 | AAA | Lc -45.9 | 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
#F1F7F9
oklch(97.2% 0.007 219.6)
-
Step 100
100
#E0ECF1
oklch(93.6% 0.015 224.5)
-
Step 200
200
#C6DEE6
oklch(88.5% 0.028 219.8)
-
Step 300
300
#9DC9D7
oklch(80.9% 0.05 219.3)
-
Step 400
400
#62ADC3
oklch(70.7% 0.081 218.9)
-
Step 500
500 (this color)
#37A2BF
oklch(66.4% 0.104 219.7)
-
Step 600
600
#00809C
oklch(55.5% 0.101 220.3)
-
Step 700
700
#006C83
oklch(49.1% 0.089 219.3)
-
Step 800
800
#00586C
oklch(42.6% 0.078 220.2)
-
Step 900
900
#024A5A
oklch(37.8% 0.067 218.8)
-
Step 950
950
#082B35
oklch(27% 0.043 220.9)
#37A2BF 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) | #909EC1 | 0.087 |
| Deuteranopia (no green cones) | #7D90BF | 0.077 |
| Tritanopia (no blue cones) | #00ACAB | 0.051 |
| Achromatopsia (no color) | #969696 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37A2BF
#37A2BF
oklch(66.4% 0.104 219.7)
- #CA7D62
#CA7D62
oklch(66.5% 0.104 40)
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 #37A2BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.042
- Cadet Blue #5F9EA0 ΔE 0.050
- Greyblue #77A1B5 ΔE 0.055
- Light Sea Green #20B2AA ΔE 0.065
- Sea #3C9992 ΔE 0.066
- Faded Blue #658CBB ΔE 0.067
- Dull Teal #5F9E8F ΔE 0.071
- Persian Green #2A9D8F ΔE 0.073
Use #37A2BF 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.