#4FA3BF
Closest named color: Greyblue (#77A1B5). oklch(67.4% 0.091 222.5), rgb(79, 163, 191).
Aa
Black text reads best on this color (7.32:1).
About this color
#4FA3BF is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.091 and its hue 223°. 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 7.32:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.32:1 |
| White text | 2.86:1 |
Values
| HEX | #4FA3BF |
| RGB | rgb(79, 163, 191) |
| HSL | hsl(195, 47%, 53%) |
| OKLCH | oklch(67.4% 0.091 222.5) |
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 #4FA3BF | 2.86:1 | Fails | Lc -60.0 | Large or bold text, headings |
| Black text on #4FA3BF | 7.32:1 | AAA | Lc 49.4 | Large or bold text, headings |
| #4FA3BF text on white | 2.86:1 | Fails | Lc 54.7 | Large or bold text, headings |
| #4FA3BF text on black | 7.32:1 | AAA | Lc -47.2 | 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 400.
-
Step 50
50
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100
#DFEDF2
oklch(93.7% 0.016 221.1)
-
Step 200
200
#C4DEE8
oklch(88.5% 0.031 222.9)
-
Step 300
300
#99C9DB
oklch(80.8% 0.056 222.9)
-
Step 400
400 (this color)
#4FA3BF
oklch(67.4% 0.091 222.5)
-
Step 500
500
#0698BC
oklch(63.1% 0.116 222.7)
-
Step 600
600
#00809F
oklch(55.6% 0.103 222.6)
-
Step 700
700
#006B86
oklch(49% 0.091 223.1)
-
Step 800
800
#00586E
oklch(42.7% 0.079 222.3)
-
Step 900
900
#00495C
oklch(37.6% 0.07 222.6)
-
Step 950
950
#032B37
oklch(26.9% 0.048 223)
#4FA3BF 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) | #939FC0 | 0.074 |
| Deuteranopia (no green cones) | #8393BF | 0.067 |
| Tritanopia (no blue cones) | #00ACAC | 0.055 |
| Achromatopsia (no color) | #989898 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FA3BF
#4FA3BF
oklch(67.4% 0.091 222.5)
- #C68469
#C68469
oklch(67.4% 0.091 43)
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 #4FA3BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.039
- Turquoise Blue #06B1C4 ΔE 0.044
- Cadet Blue #5F9EA0 ΔE 0.045
- Bluegrey #85A3B2 ΔE 0.057
- Bluey Grey #89A0B0 ΔE 0.061
- Faded Blue #658CBB ΔE 0.065
- Light Sea Green #20B2AA ΔE 0.066
- Silver Lake Blue #778DA9 ΔE 0.067
Use #4FA3BF 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.