#4FA1BB
Closest named color: Greyblue (#77A1B5). oklch(66.8% 0.088 221.3), rgb(79, 161, 187).
Aa
Black text reads best on this color (7.14:1).
About this color
#4FA1BB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.088 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.039 away. Black text reads best on it, at 7.14:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.14:1 |
| White text | 2.93:1 |
Values
| HEX | #4FA1BB |
| RGB | rgb(79, 161, 187) |
| HSL | hsl(194, 44%, 52%) |
| OKLCH | oklch(66.8% 0.088 221.3) |
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 #4FA1BB | 2.93:1 | Fails | Lc -61.0 | Content text, not long reading |
| Black text on #4FA1BB | 7.14:1 | AAA | Lc 48.4 | Large or bold text, headings |
| #4FA1BB text on white | 2.93:1 | Fails | Lc 55.6 | Large or bold text, headings |
| #4FA1BB text on black | 7.14:1 | AAA | Lc -46.1 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C9DDE4
oklch(88.5% 0.023 220.8)
-
Step 300
300
#A3C8D5
oklch(81% 0.043 221.2)
-
Step 400
400
#6EABBF
oklch(70.7% 0.069 220.7)
-
Step 500
500 (this color)
#4FA1BB
oklch(66.8% 0.088 221.3)
-
Step 600
600
#19809B
oklch(55.7% 0.096 220.9)
-
Step 700
700
#046C84
oklch(49.2% 0.089 220.5)
-
Step 800
800
#0D586C
oklch(42.8% 0.074 221.5)
-
Step 900
900
#174857
oklch(37.6% 0.057 221.9)
-
Step 950
950
#0F2A33
oklch(26.8% 0.037 222.6)
#4FA1BB 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) | #919DBC | 0.072 |
| Deuteranopia (no green cones) | #8291BB | 0.066 |
| Tritanopia (no blue cones) | #00A9A9 | 0.053 |
| Achromatopsia (no color) | #979797 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FA1BB
#4FA1BB
oklch(66.8% 0.088 221.3)
- #C3826A
#C3826A
oklch(66.7% 0.088 41)
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 #4FA1BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.039
- Cadet Blue #5F9EA0 ΔE 0.039
- Turquoise Blue #06B1C4 ΔE 0.048
- Bluegrey #85A3B2 ΔE 0.058
- Faded Blue #658CBB ΔE 0.061
- Bluey Grey #89A0B0 ΔE 0.061
- Silver Lake Blue #778DA9 ΔE 0.063
- Blue Grey #758DA3 ΔE 0.063
Use #4FA1BB 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.