#057381
Closest named color: Deep Aqua (#08787F). oklch(50.9% 0.087 209.7), rgb(5, 115, 129).
Aa
White text reads best on this color (5.56:1).
About this color
#057381 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 51%, its chroma 0.087 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.017 away. White text reads best on it, at 5.56:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 3.77:1 |
| White text | 5.56:1 |
Values
| HEX | #057381 |
| RGB | rgb(5, 115, 129) |
| HSL | hsl(187, 93%, 26%) |
| OKLCH | oklch(50.9% 0.087 209.7) |
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 #057381 | 5.56:1 | AA | Lc -82.6 | Fine for body text |
| Black text on #057381 | 3.77:1 | AA large text | Lc 26.8 | Dividers and decoration only |
| #057381 text on white | 5.56:1 | AA | Lc 77.3 | Fine for body text |
| #057381 text on black | 3.77:1 | AA large text | Lc -24.5 | 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
#F1F6F7
oklch(97% 0.005 211)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C8DEE2
oklch(88.5% 0.024 209.8)
-
Step 300
300
#A2C9CF
oklch(81% 0.042 207.8)
-
Step 400
400
#6DACB8
oklch(70.6% 0.067 210.9)
-
Step 500
500
#3F98A6
oklch(63.2% 0.086 209.4)
-
Step 600
600
#0E8291
oklch(55.7% 0.093 209.3)
-
Step 700
700 (this color)
#057381
oklch(50.9% 0.087 209.7)
-
Step 800
800
#065964
oklch(42.6% 0.072 209.6)
-
Step 900
900
#144A52
oklch(37.8% 0.056 209.2)
-
Step 950
950
#0E2B30
oklch(27% 0.036 210.5)
#057381 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) | #676E82 | 0.082 |
| Deuteranopia (no green cones) | #586481 | 0.073 |
| Tritanopia (no blue cones) | #007977 | 0.028 |
| Achromatopsia (no color) | #686868 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #057381
#057381
oklch(50.9% 0.087 209.7)
- #915248
#915248
oklch(51% 0.086 29.9)
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 #057381, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.017
- Deep Turquoise #017374 ΔE 0.022
- Dark Aquamarine #017371 ΔE 0.027
- Bluegreen #017A79 ΔE 0.029
- Ocean #017B92 ΔE 0.032
- Sea Blue #047495 ΔE 0.032
- Dark Aqua #05696B ΔE 0.041
- Teal #008080 ΔE 0.041
Use #057381 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.