#4E91F2
Closest named color: Chefchaouen Blue (#4895EF). oklch(65.9% 0.16 257.8), rgb(78, 145, 242).
Aa
Black text reads best on this color (6.65:1).
About this color
#4E91F2 is a medium-light, vivid blue. In OKLCH its lightness is 66%, its chroma 0.160 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.013 away. Black text reads best on it, at 6.65:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.160) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 6.65:1 |
| White text | 3.15:1 |
Values
| HEX | #4E91F2 |
| RGB | rgb(78, 145, 242) |
| HSL | hsl(215, 86%, 63%) |
| OKLCH | oklch(65.9% 0.16 257.8) |
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 #4E91F2 | 3.15:1 | AA large text | Lc -63.7 | Content text, not long reading |
| Black text on #4E91F2 | 6.65:1 | AA | Lc 45.7 | Large or bold text, headings |
| #4E91F2 text on white | 3.15:1 | AA large text | Lc 58.3 | Large or bold text, headings |
| #4E91F2 text on black | 6.65:1 | AA | Lc -43.4 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBF9
oklch(93.7% 0.022 256.7)
-
Step 200
200
#C8DBF6
oklch(88.6% 0.043 257.1)
-
Step 300
300
#A1C3F4
oklch(81% 0.079 257.5)
-
Step 400
400
#6EA2EE
oklch(70.8% 0.125 257.8)
-
Step 500
500 (this color)
#4E91F2
oklch(65.9% 0.16 257.8)
-
Step 600
600
#2570D7
oklch(55.7% 0.174 257.8)
-
Step 700
700
#175DBA
oklch(49.2% 0.162 257.7)
-
Step 800
800
#164C97
oklch(42.7% 0.135 258)
-
Step 900
900
#194078
oklch(37.6% 0.105 257.9)
-
Step 950
950
#102646
oklch(27% 0.066 257.9)
#4E91F2 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) | #6499F6 | 0.032 |
| Deuteranopia (no green cones) | #4A8AF0 | 0.019 |
| Tritanopia (no blue cones) | #00A7B6 | 0.127 |
| Achromatopsia (no color) | #919191 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E91F2
#4E91F2
oklch(65.9% 0.16 257.8)
- #BF8500
#BF8500
oklch(65.8% 0.137 77.9)
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 #4E91F2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.013
- Dark Sky Blue #448EE4 ΔE 0.024
- Cornflower Blue #6495ED ΔE 0.026
- Soft Blue #6488EA ΔE 0.029
- Dodger Blue #1E90FF ΔE 0.034
- Cornflower #6A79F7 ΔE 0.065
- Lavender Blue #8B88F8 ΔE 0.072
- Clear Blue #247AFD ΔE 0.074
Use #4E91F2 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.