#4E74E9
Closest named color: Royal Blue (#4169E1). oklch(59.3% 0.182 267.2), rgb(78, 116, 233).
Aa
Black text reads best on this color (4.99:1).
About this color
#4E74E9 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.182 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.034 away. Black text reads best on it, at 4.99:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.182) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.99:1 |
| White text | 4.20:1 |
Values
| HEX | #4E74E9 |
| RGB | rgb(78, 116, 233) |
| HSL | hsl(225, 78%, 61%) |
| OKLCH | oklch(59.3% 0.182 267.2) |
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 #4E74E9 | 4.20:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #4E74E9 | 4.99:1 | AA | Lc 35.5 | Non-text elements, placeholder text |
| #4E74E9 text on white | 4.20:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #4E74E9 text on black | 4.99:1 | AA | Lc -33.1 | 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 600.
-
Step 50
50
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CCD9F8
oklch(88.5% 0.045 267.4)
-
Step 300
300
#A9C0F6
oklch(81% 0.081 266.7)
-
Step 400
400
#7C9DF2
oklch(70.7% 0.13 267)
-
Step 500
500
#5C82EE
oklch(63.2% 0.167 267)
-
Step 600
600 (this color)
#4E74E9
oklch(59.3% 0.182 267.2)
-
Step 700
700
#3656BF
oklch(49.1% 0.169 267.1)
-
Step 800
800
#2D479A
oklch(42.7% 0.139 267.2)
-
Step 900
900
#283C7B
oklch(37.6% 0.11 267.6)
-
Step 950
950
#172448
oklch(27% 0.069 266.8)
#4E74E9 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) | #2F83ED | 0.041 |
| Deuteranopia (no green cones) | #0075E7 | 0.044 |
| Tritanopia (no blue cones) | #0090A3 | 0.151 |
| Achromatopsia (no color) | #7C7C7C | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E74E9
#4E74E9
oklch(59.3% 0.182 267.2)
- #9D7800
#9D7800
oklch(59.3% 0.121 86.9)
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 #4E74E9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.034
- Clear Blue #247AFD ΔE 0.041
- Cornflower #6A79F7 ΔE 0.043
- Cerulean Blue #056EEE ΔE 0.050
- Neon Blue #4361EE ΔE 0.050
- Soft Blue #6488EA ΔE 0.060
- Medium Slate Blue #7B68EE ΔE 0.062
- Dark Periwinkle #665FD1 ΔE 0.063
Use #4E74E9 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.