#257261
Closest named color: Dark Aquamarine (#017371). oklch(50% 0.079 175.4), rgb(37, 114, 97).
Aa
White text reads best on this color (5.74:1).
About this color
#257261 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 50%, its chroma 0.079 and its hue 175°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.026 away. White text reads best on it, at 5.74:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.65:1 |
| White text | 5.74:1 |
Values
| HEX | #257261 |
| RGB | rgb(37, 114, 97) |
| HSL | hsl(167, 51%, 30%) |
| OKLCH | oklch(50% 0.079 175.4) |
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 #257261 | 5.74:1 | AA | Lc -83.7 | Fine for body text |
| Black text on #257261 | 3.65:1 | AA large text | Lc 25.6 | Dividers and decoration only |
| #257261 text on white | 5.74:1 | AA | Lc 78.4 | Fine for body text |
| #257261 text on black | 3.65:1 | AA large text | Lc -23.3 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CBDED8
oklch(88.5% 0.022 174.9)
-
Step 300
300
#A8C9BF
oklch(80.9% 0.038 175)
-
Step 400
400
#77AE9F
oklch(70.8% 0.062 175.5)
-
Step 500
500
#519987
oklch(63.1% 0.078 175.5)
-
Step 600
600
#308471
oklch(55.7% 0.086 175.3)
-
Step 700
700 (this color)
#257261
oklch(50% 0.079 175.4)
-
Step 800
800
#1F5B4D
oklch(42.8% 0.066 174.8)
-
Step 900
900
#204B40
oklch(37.9% 0.052 174.4)
-
Step 950
950
#142C26
oklch(27.1% 0.032 175.7)
#257261 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) | #6E6B60 | 0.083 |
| Deuteranopia (no green cones) | #636362 | 0.079 |
| Tritanopia (no blue cones) | #00736D | 0.020 |
| Achromatopsia (no color) | #666666 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #257261
#257261
oklch(50% 0.079 175.4)
- #875065
#875065
oklch(50.1% 0.078 355.9)
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 #257261, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.026
- Deep Turquoise #017374 ΔE 0.030
- Bluegreen #017A79 ΔE 0.038
- Dark Aqua #05696B ΔE 0.041
- Deep Aqua #08787F ΔE 0.045
- Dark Green Blue #1F6357 ΔE 0.048
- Teal #008080 ΔE 0.053
- Slate #516572 ΔE 0.070
Use #257261 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.