#057CDA
Closest named color: Water Blue (#0E87CC). oklch(58.1% 0.169 251.4), rgb(5, 124, 218).
Aa
Black text reads best on this color (4.90:1).
About this color
#057CDA is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.169 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.041 away. Black text reads best on it, at 4.90:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 4.90:1 |
| White text | 4.28:1 |
Values
| HEX | #057CDA |
| RGB | rgb(5, 124, 218) |
| HSL | hsl(206, 96%, 44%) |
| OKLCH | oklch(58.1% 0.169 251.4) |
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 #057CDA | 4.28:1 | AA large text | Lc -74.4 | Content text, not long reading |
| Black text on #057CDA | 4.90:1 | AA | Lc 35.2 | Non-text elements, placeholder text |
| #057CDA text on white | 4.28:1 | AA large text | Lc 68.9 | Content text, not long reading |
| #057CDA text on black | 4.90:1 | AA | Lc -32.8 | Non-text elements, placeholder text |
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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF9
oklch(93.6% 0.022 254.4)
-
Step 200
200
#C5DCF5
oklch(88.5% 0.042 250.5)
-
Step 300
300
#9DC5F1
oklch(81% 0.076 251.2)
-
Step 400
400
#64A5EA
oklch(70.7% 0.122 251.2)
-
Step 500
500
#338CE3
oklch(63% 0.155 251.4)
-
Step 600
600 (this color)
#057CDA
oklch(58.1% 0.169 251.4)
-
Step 700
700
#0062AF
oklch(49.2% 0.144 251.3)
-
Step 800
800
#005090
oklch(42.7% 0.125 251.1)
-
Step 900
900
#0C4375
oklch(37.8% 0.101 251.2)
-
Step 950
950
#0A2745
oklch(26.9% 0.066 252.2)
#057CDA 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) | #4A83DE | 0.045 |
| Deuteranopia (no green cones) | #2072D8 | 0.026 |
| Tritanopia (no blue cones) | #0093A0 | 0.124 |
| Achromatopsia (no color) | #7A7A7A | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #057CDA
#057CDA
oklch(58.1% 0.169 251.4)
- #A86C00
#A86C00
oklch(58.2% 0.125 71.4)
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 #057CDA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.041
- Windows Blue #3778BF ΔE 0.044
- Cerulean Blue #056EEE ΔE 0.050
- Royal Blue #4169E1 ΔE 0.055
- Clear Blue #247AFD ΔE 0.055
- Dark Sky Blue #448EE4 ΔE 0.063
- Nice Blue #107AB0 ΔE 0.065
- Cool Blue #4984B8 ΔE 0.070
Use #057CDA 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.