#4B99D7
Closest named color: Chefchaouen Blue (#4895EF). oklch(66.1% 0.12 245.1), rgb(75, 153, 215).
Aa
Black text reads best on this color (6.83:1).
About this color
#4B99D7 is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.120 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.040 away. Black text reads best on it, at 6.83:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 6.83:1 |
| White text | 3.07:1 |
Values
| HEX | #4B99D7 |
| RGB | rgb(75, 153, 215) |
| HSL | hsl(207, 64%, 57%) |
| OKLCH | oklch(66.1% 0.12 245.1) |
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 #4B99D7 | 3.07:1 | AA large text | Lc -62.7 | Content text, not long reading |
| Black text on #4B99D7 | 6.83:1 | AA | Lc 46.7 | Large or bold text, headings |
| #4B99D7 text on white | 3.07:1 | AA large text | Lc 57.4 | Large or bold text, headings |
| #4B99D7 text on black | 6.83:1 | AA | Lc -44.4 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C8DCEE
oklch(88.5% 0.033 245.3)
-
Step 300
300
#A1C5E5
oklch(80.8% 0.06 245.5)
-
Step 400
400
#6DA7D8
oklch(70.8% 0.094 245.2)
-
Step 500
500 (this color)
#4B99D7
oklch(66.1% 0.12 245.1)
-
Step 600
600
#1979BA
oklch(55.6% 0.131 244.9)
-
Step 700
700
#0665A0
oklch(49% 0.121 245.2)
-
Step 800
800
#0E5382
oklch(42.7% 0.101 245.1)
-
Step 900
900
#164568
oklch(37.7% 0.078 244.8)
-
Step 950
950
#0F293D
oklch(27.1% 0.049 244.3)
#4B99D7 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) | #7D9BDA | 0.053 |
| Deuteranopia (no green cones) | #6A8DD6 | 0.041 |
| Tritanopia (no blue cones) | #00A8AF | 0.090 |
| Achromatopsia (no color) | #939393 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B99D7
#4B99D7
oklch(66.1% 0.12 245.1)
- #C48138
#C48138
oklch(65.9% 0.12 65)
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 #4B99D7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.040
- Dark Sky Blue #448EE4 ΔE 0.041
- Cornflower Blue #6495ED ΔE 0.045
- Faded Blue #658CBB ΔE 0.050
- Soft Blue #6488EA ΔE 0.062
- Water Blue #0E87CC ΔE 0.065
- Cool Blue #4984B8 ΔE 0.068
- Dusty Blue #5A86AD ΔE 0.072
Use #4B99D7 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.