#237457
Closest named color: Dark Aquamarine (#017371). oklch(50.2% 0.091 165.2), rgb(35, 116, 87).
Aa
White text reads best on this color (5.66:1).
About this color
#237457 is a medium-dark, moderately saturated green. In OKLCH its lightness is 50%, its chroma 0.091 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.042 away. White text reads best on it, at 5.66:1.
| Hue family | Greens |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.091) |
| Temperature | in between |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.70:1 |
| White text | 5.66:1 |
Values
| HEX | #237457 |
| RGB | rgb(35, 116, 87) |
| HSL | hsl(159, 54%, 30%) |
| OKLCH | oklch(50.2% 0.091 165.2) |
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 #237457 | 5.66:1 | AA | Lc -83.3 | Fine for body text |
| Black text on #237457 | 3.70:1 | AA large text | Lc 26.0 | Dividers and decoration only |
| #237457 text on white | 5.66:1 | AA | Lc 78.0 | Fine for body text |
| #237457 text on black | 3.70:1 | AA large text | Lc -23.8 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3EDE8
oklch(93.7% 0.013 164.8)
-
Step 200
200
#CBDFD5
oklch(88.6% 0.025 164.4)
-
Step 300
300
#A7CABA
oklch(80.9% 0.044 165.9)
-
Step 400
400
#76AF96
oklch(70.7% 0.07 165.3)
-
Step 500
500
#4F9B7C
oklch(63.2% 0.09 165)
-
Step 600
600
#2E8565
oklch(55.6% 0.097 165.1)
-
Step 700
700 (this color)
#237457
oklch(50.2% 0.091 165.2)
-
Step 800
800
#1D5C45
oklch(42.8% 0.075 165.3)
-
Step 900
900
#1F4B3A
oklch(37.6% 0.057 165.6)
-
Step 950
950
#132C22
oklch(26.9% 0.037 165.7)
#237457 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) | #726C55 | 0.090 |
| Deuteranopia (no green cones) | #676459 | 0.087 |
| Tritanopia (no blue cones) | #00746C | 0.033 |
| Achromatopsia (no color) | #676767 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #237457
#237457
oklch(50.2% 0.091 165.2)
- #884E6F
#884E6F
oklch(50.2% 0.089 345.6)
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 #237457, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.042
- Deep Turquoise #017374 ΔE 0.047
- Bluegreen #017A79 ΔE 0.050
- Dark Green Blue #1F6357 ΔE 0.056
- Dark Aqua #05696B ΔE 0.056
- Deep Aqua #08787F ΔE 0.060
- Jungle Green #048243 ΔE 0.060
- Dark Olive Green #556B2F ΔE 0.061
Use #237457 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.