#37ACA7
Closest named color: Light Sea Green (#20B2AA). oklch(68% 0.102 190.9), rgb(55, 172, 167).
Aa
Black text reads best on this color (7.62:1).
About this color
#37ACA7 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 68%, its chroma 0.102 and its hue 191°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sea Green (#20B2AA), ΔE 0.017 away. Black text reads best on it, at 7.62:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Light Sea Green (#20B2AA) |
| Black text | 7.62:1 |
| White text | 2.75:1 |
Values
| HEX | #37ACA7 |
| RGB | rgb(55, 172, 167) |
| HSL | hsl(177, 52%, 45%) |
| OKLCH | oklch(68% 0.102 190.9) |
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 #37ACA7 | 2.75:1 | Fails | Lc -58.1 | Large or bold text, headings |
| Black text on #37ACA7 | 7.62:1 | AAA | Lc 51.1 | Large or bold text, headings |
| #37ACA7 text on white | 2.75:1 | Fails | Lc 52.9 | Large or bold text, headings |
| #37ACA7 text on black | 7.62:1 | AAA | Lc -49.0 | 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
#EFF7F7
oklch(97% 0.008 197)
-
Step 100
100
#DDEEED
oklch(93.6% 0.018 192.6)
-
Step 200
200
#C0E1DF
oklch(88.5% 0.035 192)
-
Step 300
300
#90CECA
oklch(80.8% 0.064 190.9)
-
Step 400
400 (this color)
#37ACA7
oklch(68% 0.102 190.9)
-
Step 500
500
#009E99
oklch(63.1% 0.109 190.8)
-
Step 600
600
#008581
oklch(55.7% 0.096 191.1)
-
Step 700
700
#00706C
oklch(49.2% 0.085 190.4)
-
Step 800
800
#005B58
oklch(42.5% 0.073 190.9)
-
Step 900
900
#004C4A
oklch(37.6% 0.065 191.7)
-
Step 950
950
#002D2C
oklch(26.9% 0.046 192.5)
#37ACA7 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) | #A2A3A7 | 0.108 |
| Deuteranopia (no green cones) | #9096A8 | 0.101 |
| Tritanopia (no blue cones) | #00B1AA | 0.018 |
| Achromatopsia (no color) | #9C9C9C | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37ACA7
#37ACA7
oklch(68% 0.102 190.9)
- #CE7D89
#CE7D89
oklch(67.9% 0.101 10.5)
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 #37ACA7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sea Green #20B2AA ΔE 0.017
- Greeny Blue #42B395 ΔE 0.039
- Turquoise Blue #06B1C4 ΔE 0.041
- Topaz #13BBAF ΔE 0.041
- Cadet Blue #5F9EA0 ΔE 0.044
- Dull Teal #5F9E8F ΔE 0.047
- Persian Green #2A9D8F ΔE 0.051
- Grey Teal #5E9B8A ΔE 0.055
Use #37ACA7 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.