#057B5E
Closest named color: Bluegreen (#017A79). oklch(51.9% 0.103 168.8), rgb(5, 123, 94).
Aa
White text reads best on this color (5.24:1).
About this color
#057B5E is a medium-dark, moderately saturated green. In OKLCH its lightness is 52%, its chroma 0.103 and its hue 169°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.044 away. White text reads best on it, at 5.24:1.
| Hue family | Greens |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.103) |
| Temperature | in between |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.00:1 |
| White text | 5.24:1 |
Values
| HEX | #057B5E |
| RGB | rgb(5, 123, 94) |
| HSL | hsl(165, 92%, 25%) |
| OKLCH | oklch(51.9% 0.103 168.8) |
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 #057B5E | 5.24:1 | AA | Lc -80.9 | Fine for body text |
| Black text on #057B5E | 4.00:1 | AA large text | Lc 28.5 | Dividers and decoration only |
| #057B5E text on white | 5.24:1 | AA | Lc 75.5 | Fine for body text |
| #057B5E text on black | 4.00:1 | AA large text | Lc -26.2 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDE8
oklch(93.6% 0.014 169.2)
-
Step 200
200
#C8DFD6
oklch(88.4% 0.027 170.2)
-
Step 300
300
#A2CBBB
oklch(80.8% 0.049 169.3)
-
Step 400
400
#6CB198
oklch(70.7% 0.08 168.9)
-
Step 500
500
#3D9D7F
oklch(63.1% 0.101 169.2)
-
Step 600
600
#058868
oklch(55.7% 0.111 168.7)
-
Step 700
700 (this color)
#057B5E
oklch(51.9% 0.103 168.8)
-
Step 800
800
#015E47
oklch(42.8% 0.086 168.8)
-
Step 900
900
#124D3B
oklch(37.8% 0.067 168.3)
-
Step 950
950
#0E2D23
oklch(27% 0.042 169.1)
#057B5E 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) | #77725C | 0.103 |
| Deuteranopia (no green cones) | #6A6860 | 0.100 |
| Tritanopia (no blue cones) | #007C73 | 0.032 |
| Achromatopsia (no color) | #6C6C6C | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #057B5E
#057B5E
oklch(51.9% 0.103 168.8)
- #934E72
#934E72
oklch(51.8% 0.103 348.7)
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 #057B5E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.044
- Dark Aquamarine #017371 ΔE 0.045
- Deep Turquoise #017374 ΔE 0.049
- Jungle Green #048243 ΔE 0.050
- Teal #008080 ΔE 0.051
- Deep Aqua #08787F ΔE 0.056
- Sea Green #2E8B57 ΔE 0.059
- Dark Aqua #05696B ΔE 0.068
Use #057B5E 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.