#4B9BC4
Closest named color: Faded Blue (#658CBB). oklch(65.6% 0.099 233.4), rgb(75, 155, 196).
Aa
Black text reads best on this color (6.78:1).
About this color
#4B9BC4 is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.099 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.044 away. Black text reads best on it, at 6.78:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.78:1 |
| White text | 3.09:1 |
Values
| HEX | #4B9BC4 |
| RGB | rgb(75, 155, 196) |
| HSL | hsl(200, 51%, 53%) |
| OKLCH | oklch(65.6% 0.099 233.4) |
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 #4B9BC4 | 3.09:1 | AA large text | Lc -63.1 | Content text, not long reading |
| Black text on #4B9BC4 | 6.78:1 | AA | Lc 46.4 | Large or bold text, headings |
| #4B9BC4 text on white | 3.09:1 | AA large text | Lc 57.7 | Large or bold text, headings |
| #4B9BC4 text on black | 6.78:1 | AA | Lc -44.1 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C9DDE8
oklch(88.6% 0.026 231.7)
-
Step 300
300
#A3C7DB
oklch(81% 0.048 232.5)
-
Step 400
400
#6EA9CA
oklch(70.7% 0.078 233.9)
-
Step 500
500 (this color)
#4B9BC4
oklch(65.6% 0.099 233.4)
-
Step 600
600
#1A7DA8
oklch(55.6% 0.108 233.3)
-
Step 700
700
#066990
oklch(49.1% 0.1 233.4)
-
Step 800
800
#0E5675
oklch(42.7% 0.083 233.2)
-
Step 900
900
#17475E
oklch(37.7% 0.064 233.1)
-
Step 950
950
#0F2A37
oklch(27.1% 0.041 231.9)
#4B9BC4 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) | #8799C6 | 0.064 |
| Deuteranopia (no green cones) | #768DC3 | 0.055 |
| Tritanopia (no blue cones) | #00A6A9 | 0.067 |
| Achromatopsia (no color) | #929292 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B9BC4
#4B9BC4
oklch(65.6% 0.099 233.4)
- #C08055
#C08055
oklch(65.6% 0.099 54)
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 #4B9BC4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.044
- Greyblue #77A1B5 ΔE 0.054
- Cadet Blue #5F9EA0 ΔE 0.059
- Silver Lake Blue #778DA9 ΔE 0.059
- Dusty Blue #5A86AD ΔE 0.060
- Blue Grey #758DA3 ΔE 0.062
- Cool Blue #4984B8 ΔE 0.065
- Off Blue #5684AE ΔE 0.065
Use #4B9BC4 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.