#4FA1C9
Closest named color: Greyblue (#77A1B5). oklch(67.4% 0.099 232), rgb(79, 161, 201).
Aa
Black text reads best on this color (7.27:1).
About this color
#4FA1C9 is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.099 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.047 away. Black text reads best on it, at 7.27:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.27:1 |
| White text | 2.88:1 |
Values
| HEX | #4FA1C9 |
| RGB | rgb(79, 161, 201) |
| HSL | hsl(200, 53%, 55%) |
| OKLCH | oklch(67.4% 0.099 232) |
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 #4FA1C9 | 2.88:1 | Fails | Lc -60.2 | Content text, not long reading |
| Black text on #4FA1C9 | 7.27:1 | AAA | Lc 49.1 | Large or bold text, headings |
| #4FA1C9 text on white | 2.88:1 | Fails | Lc 54.9 | Large or bold text, headings |
| #4FA1C9 text on black | 7.27:1 | AAA | Lc -46.9 | 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
#DFECF4
oklch(93.6% 0.018 234.5)
-
Step 200
200
#C3DEEC
oklch(88.5% 0.035 230.3)
-
Step 300
300
#99C8E2
oklch(80.8% 0.062 232.7)
-
Step 400
400 (this color)
#4FA1C9
oklch(67.4% 0.099 232)
-
Step 500
500
#0B95C8
oklch(63% 0.127 232.1)
-
Step 600
600
#007EAA
oklch(55.7% 0.113 231.8)
-
Step 700
700
#006A8F
oklch(49.2% 0.1 231.3)
-
Step 800
800
#005676
oklch(42.6% 0.087 232.3)
-
Step 900
900
#004863
oklch(37.7% 0.077 231.8)
-
Step 950
950
#032A3B
oklch(26.8% 0.052 232.3)
#4FA1C9 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) | #8D9FCB | 0.066 |
| Deuteranopia (no green cones) | #7C92C8 | 0.058 |
| Tritanopia (no blue cones) | #00ACAE | 0.067 |
| Achromatopsia (no color) | #989898 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FA1C9
#4FA1C9
oklch(67.4% 0.099 232)
- #C7855C
#C7855C
oklch(67.5% 0.099 52.2)
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 #4FA1C9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.047
- Turquoise Blue #06B1C4 ΔE 0.054
- Faded Blue #658CBB ΔE 0.058
- Cadet Blue #5F9EA0 ΔE 0.060
- Bluegrey #85A3B2 ΔE 0.064
- Bluey Grey #89A0B0 ΔE 0.067
- Silver Lake Blue #778DA9 ΔE 0.068
- Blue Grey #758DA3 ΔE 0.072
Use #4FA1C9 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.