#3FA7DF
Closest named color: Turquoise Blue (#06B1C4). oklch(69.3% 0.125 236.4), rgb(63, 167, 223).
Aa
Black text reads best on this color (7.80:1).
About this color
#3FA7DF is a medium-light, moderately saturated blue. In OKLCH its lightness is 69%, its chroma 0.125 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.059 away. Black text reads best on it, at 7.80:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.80:1 |
| White text | 2.69:1 |
Values
| HEX | #3FA7DF |
| RGB | rgb(63, 167, 223) |
| HSL | hsl(201, 71%, 56%) |
| OKLCH | oklch(69.3% 0.125 236.4) |
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 #3FA7DF | 2.69:1 | Fails | Lc -57.1 | Large or bold text, headings |
| Black text on #3FA7DF | 7.80:1 | AAA | Lc 52.1 | Large or bold text, headings |
| #3FA7DF text on white | 2.69:1 | Fails | Lc 51.9 | Large or bold text, headings |
| #3FA7DF text on black | 7.80:1 | AAA | Lc -50.0 | 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
#EFF7FC
oklch(97.2% 0.011 234.8)
-
Step 100
100
#DCEDF7
oklch(93.6% 0.023 233.4)
-
Step 200
200
#BFDEF2
oklch(88.4% 0.043 236.3)
-
Step 300
300
#90C9ED
oklch(80.9% 0.078 236.7)
-
Step 400
400 (this color)
#3FA7DF
oklch(69.3% 0.125 236.4)
-
Step 500
500
#0094D0
oklch(63.1% 0.136 236.2)
-
Step 600
600
#007CB0
oklch(55.5% 0.121 236.7)
-
Step 700
700
#006895
oklch(49% 0.107 237)
-
Step 800
800
#00557B
oklch(42.6% 0.093 237.2)
-
Step 900
900
#004767
oklch(37.7% 0.082 236.6)
-
Step 950
950
#002A3F
oklch(27% 0.059 236.5)
#3FA7DF 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) | #8CA6E2 | 0.073 |
| Deuteranopia (no green cones) | #7697DE | 0.060 |
| Tritanopia (no blue cones) | #00B5BA | 0.080 |
| Achromatopsia (no color) | #9E9E9E | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FA7DF
#3FA7DF
oklch(69.3% 0.125 236.4)
- #D68649
#D68649
oklch(69.2% 0.125 56.1)
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 #3FA7DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.059
- Chefchaouen Blue #4895EF ΔE 0.060
- Cornflower Blue #6495ED ΔE 0.062
- Deep Sky Blue #00BFFF ΔE 0.070
- Dark Sky Blue #448EE4 ΔE 0.071
- Greyblue #77A1B5 ΔE 0.072
- Faded Blue #658CBB ΔE 0.081
- Bluegrey #85A3B2 ΔE 0.085
Use #3FA7DF 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.