#3FA4CC
Closest named color: Turquoise Blue (#06B1C4). oklch(67.7% 0.109 228.1), rgb(63, 164, 204).
Aa
Black text reads best on this color (7.39:1).
About this color
#3FA4CC is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 68%, its chroma 0.109 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.045 away. Black text reads best on it, at 7.39:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.39:1 |
| White text | 2.84:1 |
Values
| HEX | #3FA4CC |
| RGB | rgb(63, 164, 204) |
| HSL | hsl(197, 58%, 52%) |
| OKLCH | oklch(67.7% 0.109 228.1) |
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 #3FA4CC | 2.84:1 | Fails | Lc -59.4 | Large or bold text, headings |
| Black text on #3FA4CC | 7.39:1 | AAA | Lc 49.9 | Large or bold text, headings |
| #3FA4CC text on white | 2.84:1 | Fails | Lc 54.2 | Large or bold text, headings |
| #3FA4CC text on black | 7.39:1 | AAA | Lc -47.7 | 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
#EFF7FA
oklch(97.1% 0.009 222.1)
-
Step 100
100
#DDEDF4
oklch(93.6% 0.019 225.7)
-
Step 200
200
#C0DFED
oklch(88.5% 0.038 226.8)
-
Step 300
300
#92CAE4
oklch(80.9% 0.068 228.4)
-
Step 400
400 (this color)
#3FA4CC
oklch(67.7% 0.109 228.1)
-
Step 500
500
#0097C4
oklch(63.2% 0.123 228.1)
-
Step 600
600
#007FA5
oklch(55.7% 0.108 227.8)
-
Step 700
700
#006A8B
oklch(49% 0.096 228.3)
-
Step 800
800
#005773
oklch(42.7% 0.084 228.5)
-
Step 900
900
#004960
oklch(37.8% 0.073 227.3)
-
Step 950
950
#002B3B
oklch(27% 0.053 228.8)
#3FA4CC 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) | #8FA1CE | 0.079 |
| Deuteranopia (no green cones) | #7C93CB | 0.069 |
| Tritanopia (no blue cones) | #00AFB1 | 0.063 |
| Achromatopsia (no color) | #999999 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FA4CC
#3FA4CC
oklch(67.7% 0.109 228.1)
- #CE825A
#CE825A
oklch(67.8% 0.109 48)
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 #3FA4CC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.045
- Greyblue #77A1B5 ΔE 0.055
- Cadet Blue #5F9EA0 ΔE 0.065
- Faded Blue #658CBB ΔE 0.068
- Bluegrey #85A3B2 ΔE 0.072
- Chefchaouen Blue #4895EF ΔE 0.075
- Light Sea Green #20B2AA ΔE 0.076
- Bluey Grey #89A0B0 ΔE 0.077
Use #3FA4CC 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.