#257267
Closest named color: Dark Aquamarine (#017371). oklch(50.2% 0.076 181.9), rgb(37, 114, 103).
Aa
White text reads best on this color (5.70:1).
About this color
#257267 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 50%, its chroma 0.076 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.018 away. White text reads best on it, at 5.70:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.68:1 |
| White text | 5.70:1 |
Values
| HEX | #257267 |
| RGB | rgb(37, 114, 103) |
| HSL | hsl(171, 51%, 30%) |
| OKLCH | oklch(50.2% 0.076 181.9) |
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 #257267 | 5.70:1 | AA | Lc -83.5 | Fine for body text |
| Black text on #257267 | 3.68:1 | AA large text | Lc 25.8 | Dividers and decoration only |
| #257267 text on white | 5.70:1 | AA | Lc 78.3 | Fine for body text |
| #257267 text on black | 3.68:1 | AA large text | Lc -23.5 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CBDEDA
oklch(88.5% 0.021 181.8)
-
Step 300
300
#A7C9C2
oklch(80.9% 0.038 181.5)
-
Step 400
400
#77ADA3
oklch(70.7% 0.059 181.7)
-
Step 500
500
#50998D
oklch(63.2% 0.076 181.8)
-
Step 600
600
#308377
oklch(55.6% 0.082 182.1)
-
Step 700
700 (this color)
#257267
oklch(50.2% 0.076 181.9)
-
Step 800
800
#1E5A51
oklch(42.6% 0.063 181.5)
-
Step 900
900
#1F4A43
oklch(37.6% 0.049 181.4)
-
Step 950
950
#142B27
oklch(26.9% 0.03 181.4)
#257267 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) | #6D6B67 | 0.082 |
| Deuteranopia (no green cones) | #616368 | 0.076 |
| Tritanopia (no blue cones) | #00746F | 0.016 |
| Achromatopsia (no color) | #666666 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #257267
#257267
oklch(50.2% 0.076 181.9)
- #885160
#885160
oklch(50.2% 0.076 2.6)
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 #257267, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.018
- Deep Turquoise #017374 ΔE 0.022
- Bluegreen #017A79 ΔE 0.031
- Dark Aqua #05696B ΔE 0.036
- Deep Aqua #08787F ΔE 0.036
- Teal #008080 ΔE 0.048
- Dark Green Blue #1F6357 ΔE 0.049
- Slate #516572 ΔE 0.064
Use #257267 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.