#4B99B2
Closest named color: Cadet Blue (#5F9EA0). oklch(64.4% 0.085 221.5), rgb(75, 153, 178).
Aa
Black text reads best on this color (6.49:1).
About this color
#4B99B2 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.085 and its hue 222°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.039 away. Black text reads best on it, at 6.49:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.49:1 |
| White text | 3.23:1 |
Values
| HEX | #4B99B2 |
| RGB | rgb(75, 153, 178) |
| HSL | hsl(195, 41%, 50%) |
| OKLCH | oklch(64.4% 0.085 221.5) |
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 #4B99B2 | 3.23:1 | AA large text | Lc -64.8 | Content text, not long reading |
| Black text on #4B99B2 | 6.49:1 | AA | Lc 44.7 | Non-text elements, placeholder text |
| #4B99B2 text on white | 3.23:1 | AA large text | Lc 59.4 | Large or bold text, headings |
| #4B99B2 text on black | 6.49:1 | AA | Lc -42.3 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#C9DDE4
oklch(88.5% 0.023 220.8)
-
Step 300
300
#A4C7D4
oklch(80.8% 0.042 222.4)
-
Step 400
400
#71AABE
oklch(70.6% 0.066 222.1)
-
Step 500
500 (this color)
#4B99B2
oklch(64.4% 0.085 221.5)
-
Step 600
600
#217F9A
oklch(55.6% 0.093 221.9)
-
Step 700
700
#106B83
oklch(49% 0.086 221.5)
-
Step 800
800
#14576B
oklch(42.6% 0.071 222.8)
-
Step 900
900
#194856
oklch(37.6% 0.055 220.9)
-
Step 950
950
#112A33
oklch(26.9% 0.035 224)
#4B99B2 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) | #8A95B3 | 0.070 |
| Deuteranopia (no green cones) | #7B8AB2 | 0.063 |
| Tritanopia (no blue cones) | #00A1A1 | 0.051 |
| Achromatopsia (no color) | #8F8F8F | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B99B2
#4B99B2
oklch(64.4% 0.085 221.5)
- #BA7C64
#BA7C64
oklch(64.4% 0.085 41.9)
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 #4B99B2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.039
- Faded Blue #658CBB ΔE 0.048
- Blue Grey #758DA3 ΔE 0.050
- Silver Lake Blue #778DA9 ΔE 0.052
- Sea #3C9992 ΔE 0.052
- Greyblue #77A1B5 ΔE 0.053
- Dusty Blue #5A86AD ΔE 0.053
- Teal Green #0A9396 ΔE 0.059
Use #4B99B2 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.