#477CF0
Closest named color: Clear Blue (#247AFD). oklch(61.1% 0.184 263.5), rgb(71, 124, 240).
Aa
Black text reads best on this color (5.40:1).
About this color
#477CF0 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.184 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.031 away. Black text reads best on it, at 5.40:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.184) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.40:1 |
| White text | 3.88:1 |
Values
| HEX | #477CF0 |
| RGB | rgb(71, 124, 240) |
| HSL | hsl(221, 85%, 61%) |
| OKLCH | oklch(61.1% 0.184 263.5) |
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 #477CF0 | 3.88:1 | AA large text | Lc -71.4 | Content text, not long reading |
| Black text on #477CF0 | 5.40:1 | AA | Lc 38.2 | Non-text elements, placeholder text |
| #477CF0 text on white | 3.88:1 | AA large text | Lc 65.9 | Content text, not long reading |
| #477CF0 text on black | 5.40:1 | AA | Lc -35.8 | 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 500.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C8DAFB
oklch(88.5% 0.05 262.6)
-
Step 300
300
#A3C1FB
oklch(81% 0.089 263.3)
-
Step 400
400
#719EFA
oklch(70.7% 0.144 263.4)
-
Step 500
500 (this color)
#477CF0
oklch(61.1% 0.184 263.5)
-
Step 600
600
#3168E6
oklch(55.5% 0.2 263.5)
-
Step 700
700
#2556C8
oklch(49.2% 0.186 263.5)
-
Step 800
800
#1F47A2
oklch(42.7% 0.154 263.4)
-
Step 900
900
#1E3D80
oklch(37.7% 0.119 263.2)
-
Step 950
950
#12244B
oklch(26.9% 0.076 263.5)
#477CF0 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) | #3B89F4 | 0.033 |
| Deuteranopia (no green cones) | #007AEE | 0.037 |
| Tritanopia (no blue cones) | #0097AA | 0.147 |
| Achromatopsia (no color) | #818181 | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #477CF0
#477CF0
oklch(61.1% 0.184 263.5)
- #A77B00
#A77B00
oklch(61% 0.125 83.4)
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 #477CF0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.031
- Cornflower #6A79F7 ΔE 0.040
- Soft Blue #6488EA ΔE 0.048
- Royal Blue #4169E1 ΔE 0.052
- Dark Sky Blue #448EE4 ΔE 0.053
- Dodger Blue #1E90FF ΔE 0.053
- Cerulean Blue #056EEE ΔE 0.056
- Neon Blue #4361EE ΔE 0.066
Use #477CF0 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.