#057A8A
Closest named color: Ocean (#017B92). oklch(53.2% 0.091 210.8), rgb(5, 122, 138).
Aa
White text reads best on this color (5.05:1).
About this color
#057A8A is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.091 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean (#017B92), ΔE 0.012 away. White text reads best on it, at 5.05:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Ocean (#017B92) |
| Black text | 4.15:1 |
| White text | 5.05:1 |
Values
| HEX | #057A8A |
| RGB | rgb(5, 122, 138) |
| HSL | hsl(187, 93%, 28%) |
| OKLCH | oklch(53.2% 0.091 210.8) |
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 #057A8A | 5.05:1 | AA | Lc -79.8 | Fine for body text |
| Black text on #057A8A | 4.15:1 | AA large text | Lc 29.7 | Dividers and decoration only |
| #057A8A text on white | 5.05:1 | AA | Lc 74.4 | Content text, not long reading |
| #057A8A text on black | 4.15:1 | AA large text | Lc -27.3 | 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 600.
-
Step 50
50
#F1F6F7
oklch(97% 0.005 211)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C9DEE2
oklch(88.6% 0.023 210.4)
-
Step 300
300
#A3C8D0
oklch(80.9% 0.041 212.3)
-
Step 400
400
#6EACB8
oklch(70.7% 0.066 211.1)
-
Step 500
500
#4297A6
oklch(63% 0.084 210.9)
-
Step 600
600 (this color)
#057A8A
oklch(53.2% 0.091 210.8)
-
Step 700
700
#016D7C
oklch(49.1% 0.085 211.3)
-
Step 800
800
#0C5965
oklch(42.7% 0.07 211.3)
-
Step 900
900
#164952
oklch(37.6% 0.055 211.5)
-
Step 950
950
#0F2B30
oklch(27% 0.035 210.9)
#057A8A 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) | #6D758B | 0.085 |
| Deuteranopia (no green cones) | #5D6A8A | 0.076 |
| Tritanopia (no blue cones) | #00817F | 0.032 |
| Achromatopsia (no color) | #6F6F6F | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #057A8A
#057A8A
oklch(53.2% 0.091 210.8)
- #9A574B
#9A574B
oklch(53.2% 0.091 31.1)
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 #057A8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean #017B92 ΔE 0.012
- Deep Aqua #08787F ΔE 0.017
- Bluegreen #017A79 ΔE 0.028
- Teal #008080 ΔE 0.028
- Sea Blue #047495 ΔE 0.029
- Deep Turquoise #017374 ΔE 0.037
- Dark Aquamarine #017371 ΔE 0.041
- Ocean Blue #03719C ΔE 0.045
Use #057A8A 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.