#057A78
Closest named color: Bluegreen (#017A79). oklch(52.4% 0.089 192.8), rgb(5, 122, 120).
Aa
White text reads best on this color (5.17:1).
About this color
#057A78 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.089 and its hue 193°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.002 away. White text reads best on it, at 5.17:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.06:1 |
| White text | 5.17:1 |
Values
| HEX | #057A78 |
| RGB | rgb(5, 122, 120) |
| HSL | hsl(179, 92%, 25%) |
| OKLCH | oklch(52.4% 0.089 192.8) |
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 #057A78 | 5.17:1 | AA | Lc -80.5 | Fine for body text |
| Black text on #057A78 | 4.06:1 | AA large text | Lc 29.0 | Dividers and decoration only |
| #057A78 text on white | 5.17:1 | AA | Lc 75.1 | Fine for body text |
| #057A78 text on black | 4.06:1 | AA large text | Lc -26.6 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#C9DEDD
oklch(88.5% 0.022 193.3)
-
Step 300
300
#A4C9C7
oklch(80.9% 0.039 192.3)
-
Step 400
400
#70AEAB
oklch(70.8% 0.064 191.9)
-
Step 500
500
#449997
oklch(63.1% 0.082 193.2)
-
Step 600
600 (this color)
#057A78
oklch(52.4% 0.089 192.8)
-
Step 700
700
#076F6D
oklch(49% 0.082 192.6)
-
Step 800
800
#0F5B59
oklch(42.8% 0.069 192.1)
-
Step 900
900
#184A49
oklch(37.6% 0.053 193.3)
-
Step 950
950
#102C2B
oklch(27.1% 0.034 192.2)
#057A78 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) | #717378 | 0.093 |
| Deuteranopia (no green cones) | #636979 | 0.087 |
| Tritanopia (no blue cones) | #007E79 | 0.012 |
| Achromatopsia (no color) | #6D6D6D | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #057A78
#057A78
oklch(52.4% 0.089 192.8)
- #96545C
#96545C
oklch(52.5% 0.088 12.8)
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 #057A78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.002
- Deep Aqua #08787F ΔE 0.015
- Teal #008080 ΔE 0.019
- Deep Turquoise #017374 ΔE 0.022
- Dark Aquamarine #017371 ΔE 0.022
- Ocean #017B92 ΔE 0.041
- Dark Aqua #05696B ΔE 0.053
- Dark Cyan #008B8B ΔE 0.053
Use #057A78 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.