#237E69
Closest named color: Bluegreen (#017A79). oklch(53.5% 0.09 173.9), rgb(35, 126, 105).
Aa
White text reads best on this color (4.92:1).
About this color
#237E69 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.090 and its hue 174°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.033 away. White text reads best on it, at 4.92:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.25:1 |
| White text | 4.92:1 |
Values
| HEX | #237E69 |
| RGB | rgb(35, 126, 105) |
| HSL | hsl(166, 57%, 32%) |
| OKLCH | oklch(53.5% 0.09 173.9) |
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 #237E69 | 4.92:1 | AA | Lc -79.2 | Fine for body text |
| Black text on #237E69 | 4.25:1 | AA large text | Lc 30.3 | Non-text elements, placeholder text |
| #237E69 text on white | 4.92:1 | AA | Lc 73.8 | Content text, not long reading |
| #237E69 text on black | 4.25:1 | AA large text | Lc -27.9 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2EDE9
oklch(93.7% 0.013 172.4)
-
Step 200
200
#CBDED8
oklch(88.5% 0.022 174.9)
-
Step 300
300
#A7CABE
oklch(81% 0.041 172.4)
-
Step 400
400
#75AE9D
oklch(70.6% 0.065 173.7)
-
Step 500
500
#4D9A85
oklch(63.1% 0.084 173.5)
-
Step 600
600 (this color)
#237E69
oklch(53.5% 0.09 173.9)
-
Step 700
700
#1C705D
oklch(49.1% 0.084 174)
-
Step 800
800
#1B5B4C
oklch(42.6% 0.069 174.2)
-
Step 900
900
#1E4B3F
oklch(37.7% 0.054 173.3)
-
Step 950
950
#132C25
oklch(27% 0.034 173.4)
#237E69 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) | #7A7668 | 0.094 |
| Deuteranopia (no green cones) | #6D6D6B | 0.089 |
| Tritanopia (no blue cones) | #007F78 | 0.023 |
| Achromatopsia (no color) | #707070 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #237E69
#237E69
oklch(53.5% 0.09 173.9)
- #965671
#965671
oklch(53.5% 0.091 353.8)
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 #237E69, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.033
- Teal #008080 ΔE 0.034
- Dark Aquamarine #017371 ΔE 0.044
- Deep Aqua #08787F ΔE 0.045
- Deep Turquoise #017374 ΔE 0.046
- Dark Cyan #008B8B ΔE 0.055
- Sea Green #2E8B57 ΔE 0.056
- Dark Sage #598556 ΔE 0.060
Use #237E69 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.