#3FA4D7
Closest named color: Turquoise Blue (#06B1C4). oklch(68.2% 0.119 234.5), rgb(63, 164, 215).
Aa
Black text reads best on this color (7.50:1).
About this color
#3FA4D7 is a medium-light, moderately saturated blue. In OKLCH its lightness is 68%, its chroma 0.119 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.056 away. Black text reads best on it, at 7.50:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.50:1 |
| White text | 2.79:1 |
Values
| HEX | #3FA4D7 |
| RGB | rgb(63, 164, 215) |
| HSL | hsl(200, 66%, 55%) |
| OKLCH | oklch(68.2% 0.119 234.5) |
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 #3FA4D7 | 2.79:1 | Fails | Lc -58.8 | Large or bold text, headings |
| Black text on #3FA4D7 | 7.50:1 | AAA | Lc 50.5 | Large or bold text, headings |
| #3FA4D7 text on white | 2.79:1 | Fails | Lc 53.6 | Large or bold text, headings |
| #3FA4D7 text on black | 7.50:1 | AAA | Lc -48.3 | 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
#EFF7FB
oklch(97.1% 0.01 228.9)
-
Step 100
100
#DDEDF6
oklch(93.7% 0.021 232.1)
-
Step 200
200
#C0DEF1
oklch(88.5% 0.041 235.7)
-
Step 300
300
#91C9EA
oklch(80.9% 0.074 234.8)
-
Step 400
400 (this color)
#3FA4D7
oklch(68.2% 0.119 234.5)
-
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
#005679
oklch(42.8% 0.09 234.7)
-
Step 900
900
#004765
oklch(37.6% 0.08 234.9)
-
Step 950
950
#002A3E
oklch(26.9% 0.057 235.2)
#3FA4D7 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) | #8BA3D9 | 0.073 |
| Deuteranopia (no green cones) | #7794D6 | 0.062 |
| Tritanopia (no blue cones) | #00B1B5 | 0.075 |
| Achromatopsia (no color) | #9A9A9A | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FA4D7
#3FA4D7
oklch(68.2% 0.119 234.5)
- #D1844D
#D1844D
oklch(68.3% 0.118 54.8)
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 #3FA4D7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.056
- Chefchaouen Blue #4895EF ΔE 0.061
- Cornflower Blue #6495ED ΔE 0.065
- Greyblue #77A1B5 ΔE 0.065
- Dark Sky Blue #448EE4 ΔE 0.068
- Faded Blue #658CBB ΔE 0.071
- Cadet Blue #5F9EA0 ΔE 0.080
- Bluegrey #85A3B2 ΔE 0.081
Use #3FA4D7 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.