#057488
Closest named color: Sea Blue (#047495). oklch(51.5% 0.09 215.4), rgb(5, 116, 136).
Aa
White text reads best on this color (5.44:1).
About this color
#057488 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.090 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.021 away. White text reads best on it, at 5.44:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 3.86:1 |
| White text | 5.44:1 |
Values
| HEX | #057488 |
| RGB | rgb(5, 116, 136) |
| HSL | hsl(189, 93%, 28%) |
| OKLCH | oklch(51.5% 0.09 215.4) |
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 #057488 | 5.44:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #057488 | 3.86:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #057488 text on white | 5.44:1 | AA | Lc 76.6 | Fine for body text |
| #057488 text on black | 3.86:1 | AA large text | Lc -25.1 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C8DEE3
oklch(88.6% 0.024 212.9)
-
Step 300
300
#A1C8D2
oklch(80.8% 0.044 215.1)
-
Step 400
400
#6CACBC
oklch(70.7% 0.069 215.4)
-
Step 500
500
#3D97AB
oklch(63.1% 0.089 215)
-
Step 600
600
#088197
oklch(55.6% 0.097 215.5)
-
Step 700
700 (this color)
#057488
oklch(51.5% 0.09 215.4)
-
Step 800
800
#035969
oklch(42.8% 0.075 215.6)
-
Step 900
900
#134955
oklch(37.7% 0.058 215.8)
-
Step 950
950
#0E2B32
oklch(27.1% 0.037 216.1)
#057488 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) | #667089 | 0.079 |
| Deuteranopia (no green cones) | #576588 | 0.071 |
| Tritanopia (no blue cones) | #007B7A | 0.036 |
| Achromatopsia (no color) | #6A6A6A | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #057488
#057488
oklch(51.5% 0.09 215.4)
- #945343
#945343
oklch(51.5% 0.091 34.8)
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 #057488, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.021
- Deep Aqua #08787F ΔE 0.022
- Ocean #017B92 ΔE 0.023
- Deep Turquoise #017374 ΔE 0.032
- Bluegreen #017A79 ΔE 0.035
- Ocean Blue #03719C ΔE 0.036
- Dark Aquamarine #017371 ΔE 0.037
- Teal #008080 ΔE 0.043
Use #057488 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.