#4FA3CF
Closest named color: Greyblue (#77A1B5). oklch(68.1% 0.104 234), rgb(79, 163, 207).
Aa
Black text reads best on this color (7.47:1).
About this color
#4FA3CF is a medium-light, moderately saturated blue. In OKLCH its lightness is 68%, its chroma 0.104 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.050 away. Black text reads best on it, at 7.47:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.47:1 |
| White text | 2.81:1 |
Values
| HEX | #4FA3CF |
| RGB | rgb(79, 163, 207) |
| HSL | hsl(201, 57%, 56%) |
| OKLCH | oklch(68.1% 0.104 234) |
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 #4FA3CF | 2.81:1 | Fails | Lc -59.1 | Large or bold text, headings |
| Black text on #4FA3CF | 7.47:1 | AAA | Lc 50.2 | Large or bold text, headings |
| #4FA3CF text on white | 2.81:1 | Fails | Lc 53.8 | Large or bold text, headings |
| #4FA3CF text on black | 7.47:1 | AAA | Lc -48.0 | 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
#F0F7FA
oklch(97.2% 0.008 225.1)
-
Step 100
100
#DEECF5
oklch(93.5% 0.019 235.7)
-
Step 200
200
#C3DEEE
oklch(88.6% 0.036 233.8)
-
Step 300
300
#97C8E5
oklch(80.8% 0.066 234.6)
-
Step 400
400 (this color)
#4FA3CF
oklch(68.1% 0.104 234)
-
Step 500
500
#0095CD
oklch(63.1% 0.132 234.2)
-
Step 600
600
#007DAD
oklch(55.6% 0.117 234.3)
-
Step 700
700
#006992
oklch(49.1% 0.103 234.3)
-
Step 800
800
#005678
oklch(42.7% 0.089 233.9)
-
Step 900
900
#004865
oklch(37.8% 0.079 233.7)
-
Step 950
950
#022A3D
oklch(26.9% 0.055 234.8)
#4FA3CF 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) | #8EA1D1 | 0.067 |
| Deuteranopia (no green cones) | #7C94CE | 0.057 |
| Tritanopia (no blue cones) | #00AFB2 | 0.071 |
| Achromatopsia (no color) | #9A9A9A | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FA3CF
#4FA3CF
oklch(68.1% 0.104 234)
- #CB8659
#CB8659
oklch(68.1% 0.104 53.2)
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 #4FA3CF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.050
- Turquoise Blue #06B1C4 ΔE 0.054
- Faded Blue #658CBB ΔE 0.063
- Bluegrey #85A3B2 ΔE 0.066
- Cadet Blue #5F9EA0 ΔE 0.068
- Cornflower Blue #6495ED ΔE 0.069
- Chefchaouen Blue #4895EF ΔE 0.069
- Bluey Grey #89A0B0 ΔE 0.070
Use #4FA3CF 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.