#4579F2
Closest named color: Clear Blue (#247AFD). oklch(60.6% 0.19 264), rgb(69, 121, 242).
Aa
Black text reads best on this color (5.27:1).
About this color
#4579F2 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.190 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.026 away. Black text reads best on it, at 5.27:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.190) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.27:1 |
| White text | 3.98:1 |
Values
| HEX | #4579F2 |
| RGB | rgb(69, 121, 242) |
| HSL | hsl(222, 87%, 61%) |
| OKLCH | oklch(60.6% 0.19 264) |
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 #4579F2 | 3.98:1 | AA large text | Lc -72.2 | Content text, not long reading |
| Black text on #4579F2 | 5.27:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #4579F2 text on white | 3.98:1 | AA large text | Lc 66.7 | Content text, not long reading |
| #4579F2 text on black | 5.27:1 | AA | Lc -34.9 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C8DAFC
oklch(88.6% 0.051 263.2)
-
Step 300
300
#A2C0FE
oklch(80.8% 0.094 264.4)
-
Step 400
400
#709DFD
oklch(70.6% 0.149 264)
-
Step 500
500 (this color)
#4579F2
oklch(60.6% 0.19 264)
-
Step 600
600
#3167EA
oklch(55.7% 0.207 263.9)
-
Step 700
700
#2554CC
oklch(49.1% 0.193 264.2)
-
Step 800
800
#1F46A5
oklch(42.8% 0.16 263.9)
-
Step 900
900
#1E3C82
oklch(37.7% 0.124 263.9)
-
Step 950
950
#12244C
oklch(27% 0.078 263.8)
#4579F2 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) | #2F88F6 | 0.038 |
| Deuteranopia (no green cones) | #0078F0 | 0.034 |
| Tritanopia (no blue cones) | #0096AA | 0.152 |
| Achromatopsia (no color) | #7F7F7F | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4579F2
#4579F2
oklch(60.6% 0.19 264)
- #A57A00
#A57A00
oklch(60.6% 0.124 83.8)
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 #4579F2, closest first.
No curated palette has a color within ΔE 0.04 of #4579F2.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.026
- Cornflower #6A79F7 ΔE 0.042
- Royal Blue #4169E1 ΔE 0.047
- Cerulean Blue #056EEE ΔE 0.049
- Soft Blue #6488EA ΔE 0.056
- Neon Blue #4361EE ΔE 0.058
- Dodger Blue #1E90FF ΔE 0.059
- Dark Sky Blue #448EE4 ΔE 0.062
Use #4579F2 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.