#4E70B8
Closest named color: French Blue (#436BAD). oklch(55.4% 0.119 263.8), rgb(78, 112, 184).
Aa
White text reads best on this color (4.84:1).
About this color
#4E70B8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.119 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.025 away. White text reads best on it, at 4.84:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.33:1 |
| White text | 4.84:1 |
Values
| HEX | #4E70B8 |
| RGB | rgb(78, 112, 184) |
| HSL | hsl(221, 43%, 51%) |
| OKLCH | oklch(55.4% 0.119 263.8) |
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 #4E70B8 | 4.84:1 | AA | Lc -78.9 | Fine for body text |
| Black text on #4E70B8 | 4.33:1 | AA large text | Lc 30.6 | Non-text elements, placeholder text |
| #4E70B8 text on white | 4.84:1 | AA | Lc 73.4 | Content text, not long reading |
| #4E70B8 text on black | 4.33:1 | AA large text | Lc -28.3 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#CFD9EE
oklch(88.4% 0.031 265.3)
-
Step 300
300
#AFC1E4
oklch(80.9% 0.053 263.7)
-
Step 400
400
#85A0D7
oklch(70.6% 0.087 264.1)
-
Step 500
500
#6788CC
oklch(63.1% 0.11 263.8)
-
Step 600
600 (this color)
#4E70B8
oklch(55.4% 0.119 263.8)
-
Step 700
700
#405E9F
oklch(49.1% 0.11 264.1)
-
Step 800
800
#354D81
oklch(42.7% 0.092 264.2)
-
Step 900
900
#2E4068
oklch(37.6% 0.073 264.8)
-
Step 950
950
#1B263D
oklch(27% 0.046 264.1)
#4E70B8 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) | #5277BB | 0.020 |
| Deuteranopia (no green cones) | #446DB6 | 0.015 |
| Tritanopia (no blue cones) | #00808B | 0.106 |
| Achromatopsia (no color) | #717171 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E70B8
#4E70B8
oklch(55.4% 0.119 263.8)
- #926C00
#926C00
oklch(55.5% 0.114 84.1)
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 #4E70B8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.025
- Windows Blue #3778BF ΔE 0.028
- Flat Blue #3C73A8 ΔE 0.034
- Mid Blue #276AB3 ΔE 0.043
- Muted Blue #3B719F ΔE 0.047
- Dull Blue #49759C ΔE 0.050
- Nice Blue #107AB0 ΔE 0.051
- Steel Blue #4682B4 ΔE 0.052
Use #4E70B8 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.