#257463
Closest named color: Dark Aquamarine (#017371). oklch(50.6% 0.081 175.7), rgb(37, 116, 99).
Aa
White text reads best on this color (5.58:1).
About this color
#257463 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 51%, its chroma 0.081 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.025 away. White text reads best on it, at 5.58:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.75:1 |
| White text | 5.58:1 |
Values
| HEX | #257463 |
| RGB | rgb(37, 116, 99) |
| HSL | hsl(167, 52%, 30%) |
| OKLCH | oklch(50.6% 0.081 175.7) |
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 #257463 | 5.58:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #257463 | 3.75:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #257463 text on white | 5.58:1 | AA | Lc 77.7 | Fine for body text |
| #257463 text on black | 3.75:1 | AA large text | Lc -24.1 | 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
#A7C9BF
oklch(80.8% 0.039 175.5)
-
Step 400
400
#76AE9F
oklch(70.8% 0.063 175.8)
-
Step 500
500
#4F9987
oklch(63% 0.08 175.8)
-
Step 600
600
#2E8471
oklch(55.7% 0.087 175.5)
-
Step 700
700 (this color)
#257463
oklch(50.6% 0.081 175.7)
-
Step 800
800
#1D5B4D
oklch(42.7% 0.067 175.1)
-
Step 900
900
#1F4B40
oklch(37.8% 0.053 174.6)
-
Step 950
950
#132C26
oklch(27.1% 0.033 176.2)
#257463 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) | #706D62 | 0.085 |
| Deuteranopia (no green cones) | #646464 | 0.081 |
| Tritanopia (no blue cones) | #00766F | 0.020 |
| Achromatopsia (no color) | #686868 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #257463
#257463
oklch(50.6% 0.081 175.7)
- #8A5167
#8A5167
oklch(50.7% 0.081 355.7)
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 #257463, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.025
- Deep Turquoise #017374 ΔE 0.030
- Bluegreen #017A79 ΔE 0.033
- Deep Aqua #08787F ΔE 0.042
- Dark Aqua #05696B ΔE 0.045
- Teal #008080 ΔE 0.048
- Dark Green Blue #1F6357 ΔE 0.054
- Ocean #017B92 ΔE 0.071
Use #257463 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.