#37817C
Closest named color: Teal (#008080). oklch(55.5% 0.074 189.2), rgb(55, 129, 124).
Aa
Black text reads best on this color (4.59:1).
About this color
#37817C is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 56%, its chroma 0.074 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.024 away. Black text reads best on it, at 4.59:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.59:1 |
| White text | 4.57:1 |
Values
| HEX | #37817C |
| RGB | rgb(55, 129, 124) |
| HSL | hsl(176, 40%, 36%) |
| OKLCH | oklch(55.5% 0.074 189.2) |
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 #37817C | 4.57:1 | AA | Lc -77.0 | Fine for body text |
| Black text on #37817C | 4.59:1 | AA | Lc 32.5 | Non-text elements, placeholder text |
| #37817C text on white | 4.57:1 | AA | Lc 71.5 | Content text, not long reading |
| #37817C text on black | 4.59:1 | AA | Lc -30.1 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEB
oklch(93.6% 0.01 189.1)
-
Step 200
200
#CCDDDB
oklch(88.4% 0.018 188.3)
-
Step 300
300
#A9C8C5
oklch(80.9% 0.034 189.3)
-
Step 400
400
#7AACA7
oklch(70.8% 0.054 188.3)
-
Step 500
500
#559792
oklch(63.1% 0.068 189.3)
-
Step 600
600 (this color)
#37817C
oklch(55.5% 0.074 189.2)
-
Step 700
700
#296D69
oklch(49.1% 0.068 189.8)
-
Step 800
800
#245955
oklch(42.7% 0.057 188.6)
-
Step 900
900
#234946
oklch(37.6% 0.044 188.8)
-
Step 950
950
#152B29
oklch(27% 0.028 188.1)
#37817C 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) | #7A7B7C | 0.078 |
| Deuteranopia (no green cones) | #6E727D | 0.073 |
| Tritanopia (no blue cones) | #00847F | 0.022 |
| Achromatopsia (no color) | #767676 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37817C
#37817C
oklch(55.5% 0.074 189.2)
- #99616A
#99616A
oklch(55.6% 0.074 9.3)
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 #37817C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.024
- Dark Cyan #008B8B ΔE 0.034
- Bluegreen #017A79 ΔE 0.035
- Deep Aqua #08787F ΔE 0.040
- Ocean #017B92 ΔE 0.049
- Dusty Teal #4C9085 ΔE 0.051
- Teal Blue #01889F ΔE 0.053
- Deep Turquoise #017374 ΔE 0.054
Use #37817C 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.