#4B9FEB
Closest named color: Chefchaouen Blue (#4895EF). oklch(68.4% 0.139 248.5), rgb(75, 159, 235).
Aa
Black text reads best on this color (7.45:1).
About this color
#4B9FEB is a medium-light, moderately saturated blue. In OKLCH its lightness is 68%, its chroma 0.139 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.030 away. Black text reads best on it, at 7.45:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.45:1 |
| White text | 2.81:1 |
Values
| HEX | #4B9FEB |
| RGB | rgb(75, 159, 235) |
| HSL | hsl(209, 80%, 61%) |
| OKLCH | oklch(68.4% 0.139 248.5) |
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 #4B9FEB | 2.81:1 | Fails | Lc -59.1 | Large or bold text, headings |
| Black text on #4B9FEB | 7.45:1 | AAA | Lc 50.2 | Large or bold text, headings |
| #4B9FEB text on white | 2.81:1 | Fails | Lc 53.8 | Large or bold text, headings |
| #4B9FEB text on black | 7.45:1 | AAA | Lc -48.0 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DDECFA
oklch(93.6% 0.025 246.2)
-
Step 200
200
#C1DDF8
oklch(88.6% 0.048 247.4)
-
Step 300
300
#94C6F7
oklch(80.9% 0.087 248.4)
-
Step 400
400 (this color)
#4B9FEB
oklch(68.4% 0.139 248.5)
-
Step 500
500
#008DEB
oklch(63% 0.172 248.6)
-
Step 600
600
#0077C7
oklch(55.7% 0.152 248.5)
-
Step 700
700
#0064A8
oklch(49.2% 0.133 248.3)
-
Step 800
800
#00518B
oklch(42.6% 0.117 248.8)
-
Step 900
900
#004475
oklch(37.8% 0.103 248.3)
-
Step 950
950
#002848
oklch(27% 0.073 248.1)
#4B9FEB 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) | #7DA2EE | 0.051 |
| Deuteranopia (no green cones) | #6793EA | 0.037 |
| Tritanopia (no blue cones) | #00B1BA | 0.105 |
| Achromatopsia (no color) | #9A9A9A | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B9FEB
#4B9FEB
oklch(68.4% 0.139 248.5)
- #D18722
#D18722
oklch(68.4% 0.139 68.3)
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 #4B9FEB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.030
- Cornflower Blue #6495ED ΔE 0.033
- Dark Sky Blue #448EE4 ΔE 0.047
- Soft Blue #6488EA ΔE 0.062
- Dodger Blue #1E90FF ΔE 0.062
- Periwinkle Blue #8F99FB ΔE 0.078
- Faded Blue #658CBB ΔE 0.078
- Perrywinkle #8F8CE7 ΔE 0.082
Use #4B9FEB 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.