#57AADE
Closest named color: Turquoise Blue (#06B1C4). oklch(70.7% 0.111 238.6), rgb(87, 170, 222).
Aa
Black text reads best on this color (8.20:1).
About this color
#57AADE is a medium-light, moderately saturated blue. In OKLCH its lightness is 71%, its chroma 0.111 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.061 away. Black text reads best on it, at 8.20:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 8.20:1 |
| White text | 2.55:1 |
Values
| HEX | #57AADE |
| RGB | rgb(87, 170, 222) |
| HSL | hsl(203, 67%, 61%) |
| OKLCH | oklch(70.7% 0.111 238.6) |
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 #57AADE | 2.55:1 | Fails | Lc -55.0 | Large or bold text, headings |
| Black text on #57AADE | 8.20:1 | AAA | Lc 54.2 | Large or bold text, headings |
| #57AADE text on white | 2.55:1 | Fails | Lc 49.9 | Large or bold text, headings |
| #57AADE text on black | 8.20:1 | AAA | Lc -52.1 | Large or bold text, headings |
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 400.
-
Step 50
50
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DEECF6
oklch(93.6% 0.02 238.7)
-
Step 200
200
#C3DDF0
oklch(88.4% 0.038 239.6)
-
Step 300
300
#97C8E9
oklch(81% 0.069 238.2)
-
Step 400
400 (this color)
#57AADE
oklch(70.7% 0.111 238.6)
-
Step 500
500
#0093D4
oklch(63% 0.141 238.5)
-
Step 600
600
#007CB3
oklch(55.7% 0.124 238.2)
-
Step 700
700
#006897
oklch(49.1% 0.109 238.1)
-
Step 800
800
#00557D
oklch(42.7% 0.096 238.5)
-
Step 900
900
#004769
oklch(37.8% 0.084 238.3)
-
Step 950
950
#022A40
oklch(27.1% 0.059 238.8)
#57AADE 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) | #92AAE0 | 0.062 |
| Deuteranopia (no green cones) | #809CDD | 0.052 |
| Tritanopia (no blue cones) | #00B7BC | 0.080 |
| Achromatopsia (no color) | #A2A2A2 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57AADE
#57AADE
oklch(70.7% 0.111 238.6)
- #D48F57
#D48F57
oklch(70.8% 0.111 58.7)
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 #57AADE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.061
- Greyblue #77A1B5 ΔE 0.062
- Deep Sky Blue #00BFFF ΔE 0.066
- Cornflower Blue #6495ED ΔE 0.067
- Chefchaouen Blue #4895EF ΔE 0.071
- Bluegrey #85A3B2 ΔE 0.073
- Bluey Grey #89A0B0 ΔE 0.077
- Carolina Blue #8AB8FE ΔE 0.080
Use #57AADE 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.