#4B9EFA
Closest named color: Chefchaouen Blue (#4895EF). oklch(69% 0.158 253.1), rgb(75, 158, 250).
Aa
Black text reads best on this color (7.57:1).
About this color
#4B9EFA is a medium-light, vivid blue. In OKLCH its lightness is 69%, its chroma 0.158 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.027 away. Black text reads best on it, at 7.57:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.158) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.57:1 |
| White text | 2.77:1 |
Values
| HEX | #4B9EFA |
| RGB | rgb(75, 158, 250) |
| HSL | hsl(212, 95%, 64%) |
| OKLCH | oklch(69% 0.158 253.1) |
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 #4B9EFA | 2.77:1 | Fails | Lc -58.4 | Large or bold text, headings |
| Black text on #4B9EFA | 7.57:1 | AAA | Lc 50.9 | Large or bold text, headings |
| #4B9EFA text on white | 2.77:1 | Fails | Lc 53.2 | Large or bold text, headings |
| #4B9EFA text on black | 7.57:1 | AAA | Lc -48.7 | Large or bold text, headings |
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 400.
-
Step 50
50
#EFF6FE
oklch(97% 0.013 251.6)
-
Step 100
100
#DDECFD
oklch(93.7% 0.028 251.5)
-
Step 200
200
#C0DCFD
oklch(88.5% 0.055 252.7)
-
Step 300
300
#93C5FF
oklch(81% 0.098 252.7)
-
Step 400
400 (this color)
#4B9EFA
oklch(69% 0.158 253.1)
-
Step 500
500
#0089FA
oklch(63.1% 0.195 253)
-
Step 600
600
#0073D4
oklch(55.6% 0.172 253.1)
-
Step 700
700
#0060B3
oklch(49% 0.152 253.2)
-
Step 800
800
#004F94
oklch(42.8% 0.131 252.8)
-
Step 900
900
#00417D
oklch(37.6% 0.117 253.3)
-
Step 950
950
#00264D
oklch(26.9% 0.083 253)
#4B9EFA 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) | #74A4FE | 0.044 |
| Deuteranopia (no green cones) | #5A94F8 | 0.027 |
| Tritanopia (no blue cones) | #00B4C0 | 0.123 |
| Achromatopsia (no color) | #9B9B9B | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B9EFA
#4B9EFA
oklch(69% 0.158 253.1)
- #D18B00
#D18B00
oklch(69.1% 0.147 73.6)
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 #4B9EFA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.027
- Cornflower Blue #6495ED ΔE 0.032
- Dodger Blue #1E90FF ΔE 0.050
- Dark Sky Blue #448EE4 ΔE 0.051
- Soft Blue #6488EA ΔE 0.058
- Periwinkle Blue #8F99FB ΔE 0.071
- Perrywinkle #8F8CE7 ΔE 0.081
- Lavender Blue #8B88F8 ΔE 0.082
Use #4B9EFA 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.