#237D7C
Closest named color: Teal (#008080). oklch(53.9% 0.082 193.9), rgb(35, 125, 124).
Aa
White text reads best on this color (4.88:1).
About this color
#237D7C is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 54%, its chroma 0.082 and its hue 194°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.012 away. White text reads best on it, at 4.88:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.29:1 |
| White text | 4.88:1 |
Values
| HEX | #237D7C |
| RGB | rgb(35, 125, 124) |
| HSL | hsl(179, 56%, 31%) |
| OKLCH | oklch(53.9% 0.082 193.9) |
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 #237D7C | 4.88:1 | AA | Lc -79.0 | Fine for body text |
| Black text on #237D7C | 4.29:1 | AA large text | Lc 30.5 | Non-text elements, placeholder text |
| #237D7C text on white | 4.88:1 | AA | Lc 73.6 | Content text, not long reading |
| #237D7C text on black | 4.29:1 | AA large text | Lc -28.1 | Dividers and decoration only |
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
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CBDEDD
oklch(88.6% 0.02 193)
-
Step 300
300
#A6C9C7
oklch(81% 0.037 192.2)
-
Step 400
400
#74ADAB
oklch(70.8% 0.06 193.1)
-
Step 500
500
#4C9897
oklch(63.1% 0.075 194.3)
-
Step 600
600 (this color)
#237D7C
oklch(53.9% 0.082 193.9)
-
Step 700
700
#1B6E6D
oklch(49.1% 0.076 193.8)
-
Step 800
800
#1A5A59
oklch(42.8% 0.063 193.6)
-
Step 900
900
#1D4A49
oklch(37.8% 0.049 193.3)
-
Step 950
950
#122B2B
oklch(26.9% 0.031 195.5)
#237D7C 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) | #75777C | 0.085 |
| Deuteranopia (no green cones) | #676D7D | 0.079 |
| Tritanopia (no blue cones) | #00817C | 0.015 |
| Achromatopsia (no color) | #717171 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #237D7C
#237D7C
oklch(53.9% 0.082 193.9)
- #985A60
#985A60
oklch(53.9% 0.082 13.9)
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 #237D7C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.012
- Bluegreen #017A79 ΔE 0.016
- Deep Aqua #08787F ΔE 0.021
- Deep Turquoise #017374 ΔE 0.036
- Dark Aquamarine #017371 ΔE 0.037
- Ocean #017B92 ΔE 0.038
- Dark Cyan #008B8B ΔE 0.041
- Teal Blue #01889F ΔE 0.055
Use #237D7C 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.