#57AADA
Closest named color: Turquoise Blue (#06B1C4). oklch(70.5% 0.107 236.4), rgb(87, 170, 218).
Aa
Black text reads best on this color (8.16:1).
About this color
#57AADA is a medium-light, moderately saturated blue. In OKLCH its lightness is 71%, its chroma 0.107 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.057 away. Black text reads best on it, at 8.16:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 8.16:1 |
| White text | 2.57:1 |
Values
| HEX | #57AADA |
| RGB | rgb(87, 170, 218) |
| HSL | hsl(202, 64%, 60%) |
| OKLCH | oklch(70.5% 0.107 236.4) |
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 #57AADA | 2.57:1 | Fails | Lc -55.2 | Large or bold text, headings |
| Black text on #57AADA | 8.16:1 | AAA | Lc 53.9 | Large or bold text, headings |
| #57AADA text on white | 2.57:1 | Fails | Lc 50.1 | Large or bold text, headings |
| #57AADA text on black | 8.16:1 | AAA | Lc -51.8 | 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
#DEECF5
oklch(93.5% 0.019 235.7)
-
Step 200
200
#C3DEEF
oklch(88.6% 0.037 235.5)
-
Step 300
300
#97C8E7
oklch(80.9% 0.068 236.5)
-
Step 400
400 (this color)
#57AADA
oklch(70.5% 0.107 236.4)
-
Step 500
500
#0094D1
oklch(63.1% 0.137 236.6)
-
Step 600
600
#007CB0
oklch(55.5% 0.121 236.7)
-
Step 700
700
#006895
oklch(49% 0.107 237)
-
Step 800
800
#00557B
oklch(42.6% 0.093 237.2)
-
Step 900
900
#004767
oklch(37.7% 0.082 236.6)
-
Step 950
950
#022A3E
oklch(27% 0.056 236.2)
#57AADA 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) | #94A9DC | 0.065 |
| Deuteranopia (no green cones) | #819CD9 | 0.053 |
| Tritanopia (no blue cones) | #00B6BA | 0.076 |
| Achromatopsia (no color) | #A1A1A1 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57AADA
#57AADA
oklch(70.5% 0.107 236.4)
- #D38E5B
#D38E5B
oklch(70.5% 0.107 56.4)
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 #57AADA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.057
- Greyblue #77A1B5 ΔE 0.057
- Bluegrey #85A3B2 ΔE 0.068
- Deep Sky Blue #00BFFF ΔE 0.069
- Cornflower Blue #6495ED ΔE 0.070
- Bluey Grey #89A0B0 ΔE 0.073
- Chefchaouen Blue #4895EF ΔE 0.074
- Cool Gray #8D99AE ΔE 0.082
Use #57AADA 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.