#4B9CF2
Closest named color: Chefchaouen Blue (#4895EF). oklch(68.2% 0.15 252.1), rgb(75, 156, 242).
Aa
Black text reads best on this color (7.33:1).
About this color
#4B9CF2 is a medium-light, vivid blue. In OKLCH its lightness is 68%, its chroma 0.150 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.019 away. Black text reads best on it, at 7.33:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.150) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.33:1 |
| White text | 2.86:1 |
Values
| HEX | #4B9CF2 |
| RGB | rgb(75, 156, 242) |
| HSL | hsl(211, 87%, 62%) |
| OKLCH | oklch(68.2% 0.15 252.1) |
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 #4B9CF2 | 2.86:1 | Fails | Lc -59.8 | Large or bold text, headings |
| Black text on #4B9CF2 | 7.33:1 | AAA | Lc 49.6 | Large or bold text, headings |
| #4B9CF2 text on white | 2.86:1 | Fails | Lc 54.5 | Large or bold text, headings |
| #4B9CF2 text on black | 7.33:1 | AAA | Lc -47.3 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DDECFC
oklch(93.7% 0.027 249.9)
-
Step 200
200
#C1DCFB
oklch(88.5% 0.052 252)
-
Step 300
300
#94C5FC
oklch(80.9% 0.094 251.8)
-
Step 400
400 (this color)
#4B9CF2
oklch(68.2% 0.15 252.1)
-
Step 500
500
#008AF7
oklch(63.1% 0.19 252.2)
-
Step 600
600
#0074D1
oklch(55.7% 0.167 252.1)
-
Step 700
700
#0061B1
oklch(49.1% 0.148 252.3)
-
Step 800
800
#004F92
oklch(42.6% 0.129 252.3)
-
Step 900
900
#00427B
oklch(37.7% 0.113 252.1)
-
Step 950
950
#01274B
oklch(27% 0.078 251.6)
#4B9CF2 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) | #75A1F6 | 0.044 |
| Deuteranopia (no green cones) | #5D92F0 | 0.028 |
| Tritanopia (no blue cones) | #00B0BC | 0.115 |
| Achromatopsia (no color) | #999999 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B9CF2
#4B9CF2
oklch(68.2% 0.15 252.1)
- #CF8700
#CF8700
oklch(68.1% 0.146 71.9)
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 #4B9CF2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.019
- Cornflower Blue #6495ED ΔE 0.026
- Dark Sky Blue #448EE4 ΔE 0.041
- Dodger Blue #1E90FF ΔE 0.050
- Soft Blue #6488EA ΔE 0.053
- Periwinkle Blue #8F99FB ΔE 0.074
- Perrywinkle #8F8CE7 ΔE 0.079
- Lavender Blue #8B88F8 ΔE 0.082
Use #4B9CF2 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.