#057EF1
Closest named color: Clear Blue (#247AFD). oklch(60.1% 0.195 254.9), rgb(5, 126, 241).
Aa
Black text reads best on this color (5.26:1).
About this color
#057EF1 is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.195 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.023 away. Black text reads best on it, at 5.26:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.195) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.26:1 |
| White text | 3.99:1 |
Values
| HEX | #057EF1 |
| RGB | rgb(5, 126, 241) |
| HSL | hsl(209, 96%, 48%) |
| OKLCH | oklch(60.1% 0.195 254.9) |
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 #057EF1 | 3.99:1 | AA large text | Lc -71.9 | Content text, not long reading |
| Black text on #057EF1 | 5.26:1 | AA | Lc 37.6 | Non-text elements, placeholder text |
| #057EF1 text on white | 3.99:1 | AA large text | Lc 66.4 | Content text, not long reading |
| #057EF1 text on black | 5.26:1 | AA | Lc -35.2 | 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 500.
-
Step 50
50
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DEEBFD
oklch(93.6% 0.028 256.5)
-
Step 200
200
#C2DCFC
oklch(88.6% 0.052 253.7)
-
Step 300
300
#97C4FE
oklch(81% 0.096 255)
-
Step 400
400
#59A2FD
oklch(70.6% 0.153 255)
-
Step 500
500 (this color)
#057EF1
oklch(60.1% 0.195 254.9)
-
Step 600
600
#0071DA
oklch(55.6% 0.182 254.8)
-
Step 700
700
#005FB9
oklch(49.2% 0.161 254.8)
-
Step 800
800
#004D99
oklch(42.7% 0.14 255)
-
Step 900
900
#004081
oklch(37.7% 0.124 254.9)
-
Step 950
950
#04264D
oklch(27% 0.082 254.9)
#057EF1 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) | #3889F5 | 0.039 |
| Deuteranopia (no green cones) | #0076EF | 0.021 |
| Tritanopia (no blue cones) | #009AAC | 0.145 |
| Achromatopsia (no color) | #7F7F7F | 0.195 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #057EF1
#057EF1
oklch(60.1% 0.195 254.9)
- #AC7300
#AC7300
oklch(60% 0.127 74.6)
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 #057EF1, closest first.
No curated palette has a color within ΔE 0.04 of #057EF1.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.023
- Cerulean Blue #056EEE ΔE 0.041
- Dodger Blue #1E90FF ΔE 0.051
- Royal Blue #4169E1 ΔE 0.057
- Dark Sky Blue #448EE4 ΔE 0.061
- Bright Blue #0165FC ΔE 0.064
- Water Blue #0E87CC ΔE 0.065
- Neon Blue #4361EE ΔE 0.070
Use #057EF1 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.