#4B9FBF
Closest named color: Greyblue (#77A1B5). oklch(66.3% 0.094 225.9), rgb(75, 159, 191).
Aa
Black text reads best on this color (7.01:1).
About this color
#4B9FBF is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.094 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.045 away. Black text reads best on it, at 7.01:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.01:1 |
| White text | 2.99:1 |
Values
| HEX | #4B9FBF |
| RGB | rgb(75, 159, 191) |
| HSL | hsl(197, 48%, 52%) |
| OKLCH | oklch(66.3% 0.094 225.9) |
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 #4B9FBF | 2.99:1 | Fails | Lc -61.7 | Content text, not long reading |
| Black text on #4B9FBF | 7.01:1 | AAA | Lc 47.7 | Large or bold text, headings |
| #4B9FBF text on white | 2.99:1 | Fails | Lc 56.4 | Large or bold text, headings |
| #4B9FBF text on black | 7.01:1 | AAA | Lc -45.4 | 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 500.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C8DDE6
oklch(88.5% 0.026 225.3)
-
Step 300
300
#A2C7D7
oklch(80.8% 0.045 226)
-
Step 400
400
#6DAAC4
oklch(70.6% 0.074 226.9)
-
Step 500
500 (this color)
#4B9FBF
oklch(66.3% 0.094 225.9)
-
Step 600
600
#137FA1
oklch(55.7% 0.102 226.1)
-
Step 700
700
#006B89
oklch(49.1% 0.094 225.7)
-
Step 800
800
#095770
oklch(42.7% 0.079 226.6)
-
Step 900
900
#15485A
oklch(37.7% 0.061 225.6)
-
Step 950
950
#0E2A35
oklch(26.9% 0.039 226.8)
#4B9FBF 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) | #8E9CC1 | 0.072 |
| Deuteranopia (no green cones) | #7D90BF | 0.063 |
| Tritanopia (no blue cones) | #00A8A9 | 0.057 |
| Achromatopsia (no color) | #959595 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B9FBF
#4B9FBF
oklch(66.3% 0.094 225.9)
- #C38161
#C38161
oklch(66.4% 0.094 46.5)
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 #4B9FBF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.045
- Cadet Blue #5F9EA0 ΔE 0.047
- Turquoise Blue #06B1C4 ΔE 0.052
- Faded Blue #658CBB ΔE 0.055
- Silver Lake Blue #778DA9 ΔE 0.062
- Blue Grey #758DA3 ΔE 0.063
- Bluegrey #85A3B2 ΔE 0.064
- Bluey Grey #89A0B0 ΔE 0.067
Use #4B9FBF 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.