#4B99BC
Closest named color: Faded Blue (#658CBB). oklch(64.8% 0.093 229.8), rgb(75, 153, 188).
Aa
Black text reads best on this color (6.58:1).
About this color
#4B99BC is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.093 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.041 away. Black text reads best on it, at 6.58:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.58:1 |
| White text | 3.19:1 |
Values
| HEX | #4B99BC |
| RGB | rgb(75, 153, 188) |
| HSL | hsl(199, 46%, 52%) |
| OKLCH | oklch(64.8% 0.093 229.8) |
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 #4B99BC | 3.19:1 | AA large text | Lc -64.3 | Content text, not long reading |
| Black text on #4B99BC | 6.58:1 | AA | Lc 45.2 | Large or bold text, headings |
| #4B99BC text on white | 3.19:1 | AA large text | Lc 58.9 | Large or bold text, headings |
| #4B99BC text on black | 6.58:1 | AA | Lc -42.8 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C9DDE7
oklch(88.6% 0.025 229.2)
-
Step 300
300
#A3C7D9
oklch(80.9% 0.046 229.7)
-
Step 400
400
#70AAC5
oklch(70.8% 0.072 229)
-
Step 500
500 (this color)
#4B99BC
oklch(64.8% 0.093 229.8)
-
Step 600
600
#1F7EA3
oklch(55.7% 0.101 229.7)
-
Step 700
700
#0E6A8B
oklch(49.1% 0.093 229.4)
-
Step 800
800
#125671
oklch(42.6% 0.078 230.2)
-
Step 900
900
#19475B
oklch(37.6% 0.06 230.1)
-
Step 950
950
#102A35
oklch(27% 0.038 228.2)
#4B99BC 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) | #8797BE | 0.065 |
| Deuteranopia (no green cones) | #778BBC | 0.057 |
| Tritanopia (no blue cones) | #00A3A4 | 0.062 |
| Achromatopsia (no color) | #909090 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B99BC
#4B99BC
oklch(64.8% 0.093 229.8)
- #BC7D5A
#BC7D5A
oklch(64.7% 0.093 49.6)
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 #4B99BC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.041
- Cadet Blue #5F9EA0 ΔE 0.051
- Dusty Blue #5A86AD ΔE 0.053
- Silver Lake Blue #778DA9 ΔE 0.053
- Greyblue #77A1B5 ΔE 0.054
- Blue Grey #758DA3 ΔE 0.055
- Off Blue #5684AE ΔE 0.058
- Blue NCS #118AB2 ΔE 0.059
Use #4B99BC 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.