#4770CF
Closest named color: Royal Blue (#4169E1). oklch(56.4% 0.154 264.5), rgb(71, 112, 207).
Aa
White text reads best on this color (4.68:1).
About this color
#4770CF is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.154 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.035 away. White text reads best on it, at 4.68:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.154) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.48:1 |
| White text | 4.68:1 |
Values
| HEX | #4770CF |
| RGB | rgb(71, 112, 207) |
| HSL | hsl(222, 59%, 55%) |
| OKLCH | oklch(56.4% 0.154 264.5) |
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 #4770CF | 4.68:1 | AA | Lc -77.7 | Fine for body text |
| Black text on #4770CF | 4.48:1 | AA large text | Lc 31.9 | Non-text elements, placeholder text |
| #4770CF text on white | 4.68:1 | AA | Lc 72.2 | Content text, not long reading |
| #4770CF text on black | 4.48:1 | AA large text | Lc -29.5 | Dividers and decoration only |
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
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E3EAF8
oklch(93.6% 0.02 264.5)
-
Step 200
200
#CDD9F3
oklch(88.4% 0.038 265.8)
-
Step 300
300
#AAC1EE
oklch(80.9% 0.069 263.7)
-
Step 400
400
#7E9FE6
oklch(70.7% 0.111 264.7)
-
Step 500
500
#5E86DF
oklch(63.2% 0.142 264.5)
-
Step 600
600 (this color)
#4770CF
oklch(56.4% 0.154 264.5)
-
Step 700
700
#375BB1
oklch(49.2% 0.143 264.6)
-
Step 800
800
#2D4B8F
oklch(42.7% 0.118 264.1)
-
Step 900
900
#283F72
oklch(37.7% 0.092 264.2)
-
Step 950
950
#182543
oklch(27% 0.059 265)
#4770CF 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) | #417BD3 | 0.029 |
| Deuteranopia (no green cones) | #276ECD | 0.028 |
| Tritanopia (no blue cones) | #008695 | 0.128 |
| Achromatopsia (no color) | #747474 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4770CF
#4770CF
oklch(56.4% 0.154 264.5)
- #956F00
#956F00
oklch(56.4% 0.116 84.7)
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 #4770CF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.035
- Windows Blue #3778BF ΔE 0.038
- French Blue #436BAD ΔE 0.054
- Dark Periwinkle #665FD1 ΔE 0.054
- Mid Blue #276AB3 ΔE 0.056
- Cerulean Blue #056EEE ΔE 0.060
- Neon Blue #4361EE ΔE 0.063
- Iris #6258C4 ΔE 0.065
Use #4770CF 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.