#237169
Closest named color: Dark Aquamarine (#017371). oklch(50% 0.075 185.4), rgb(35, 113, 105).
Aa
White text reads best on this color (5.77:1).
About this color
#237169 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 50%, its chroma 0.075 and its hue 185°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.015 away. White text reads best on it, at 5.77:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.63:1 |
| White text | 5.77:1 |
Values
| HEX | #237169 |
| RGB | rgb(35, 113, 105) |
| HSL | hsl(174, 53%, 29%) |
| OKLCH | oklch(50% 0.075 185.4) |
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 #237169 | 5.77:1 | AA | Lc -83.9 | Fine for body text |
| Black text on #237169 | 3.63:1 | AA large text | Lc 25.5 | Dividers and decoration only |
| #237169 text on white | 5.77:1 | AA | Lc 78.6 | Fine for body text |
| #237169 text on black | 3.63:1 | AA large text | Lc -23.2 | 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 700.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEB
oklch(93.6% 0.01 189.1)
-
Step 200
200
#CBDEDB
oklch(88.6% 0.021 185.4)
-
Step 300
300
#A7C9C4
oklch(81% 0.037 185.6)
-
Step 400
400
#76ADA5
oklch(70.7% 0.059 184.6)
-
Step 500
500
#4F9890
oklch(63% 0.074 186.2)
-
Step 600
600
#2F837A
oklch(55.7% 0.081 185.3)
-
Step 700
700 (this color)
#237169
oklch(50% 0.075 185.4)
-
Step 800
800
#1D5A54
oklch(42.7% 0.062 186)
-
Step 900
900
#1F4A45
oklch(37.7% 0.049 185.3)
-
Step 950
950
#132B28
oklch(26.8% 0.031 185.1)
#237169 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) | #6B6B69 | 0.080 |
| Deuteranopia (no green cones) | #60626A | 0.076 |
| Tritanopia (no blue cones) | #00746E | 0.013 |
| Achromatopsia (no color) | #666666 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #237169
#237169
oklch(50% 0.075 185.4)
- #87505D
#87505D
oklch(49.8% 0.075 4.9)
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 #237169, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.015
- Deep Turquoise #017374 ΔE 0.018
- Bluegreen #017A79 ΔE 0.031
- Dark Aqua #05696B ΔE 0.031
- Deep Aqua #08787F ΔE 0.035
- Dark Green Blue #1F6357 ΔE 0.047
- Teal #008080 ΔE 0.049
- Slate #516572 ΔE 0.061
Use #237169 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.