#3FA7D9
Closest named color: Turquoise Blue (#06B1C4). oklch(69% 0.119 233.3), rgb(63, 167, 217).
Aa
Black text reads best on this color (7.74:1).
About this color
#3FA7D9 is a medium-light, moderately saturated blue. In OKLCH its lightness is 69%, its chroma 0.119 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.052 away. Black text reads best on it, at 7.74:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.74:1 |
| White text | 2.71:1 |
Values
| HEX | #3FA7D9 |
| RGB | rgb(63, 167, 217) |
| HSL | hsl(199, 67%, 55%) |
| OKLCH | oklch(69% 0.119 233.3) |
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 #3FA7D9 | 2.71:1 | Fails | Lc -57.5 | Large or bold text, headings |
| Black text on #3FA7D9 | 7.74:1 | AAA | Lc 51.8 | Large or bold text, headings |
| #3FA7D9 text on white | 2.71:1 | Fails | Lc 52.2 | Large or bold text, headings |
| #3FA7D9 text on black | 7.74:1 | AAA | Lc -49.6 | 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
#BFDEF0
oklch(88.4% 0.041 233.4)
-
Step 300
300
#90C9E9
oklch(80.8% 0.074 233.5)
-
Step 400
400 (this color)
#3FA7D9
oklch(69% 0.119 233.3)
-
Step 500
500
#0095CB
oklch(63% 0.131 233.2)
-
Step 600
600
#007DAC
oklch(55.5% 0.116 233.8)
-
Step 700
700
#006991
oklch(49% 0.102 233.6)
-
Step 800
800
#005677
oklch(42.6% 0.088 233.1)
-
Step 900
900
#004864
oklch(37.8% 0.078 232.8)
-
Step 950
950
#002A3D
oklch(26.9% 0.056 233.8)
#3FA7D9 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) | #8EA5DB | 0.076 |
| Deuteranopia (no green cones) | #7996D8 | 0.065 |
| Tritanopia (no blue cones) | #00B4B8 | 0.073 |
| Achromatopsia (no color) | #9D9D9D | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FA7D9
#3FA7D9
oklch(69% 0.119 233.3)
- #D48550
#D48550
oklch(68.9% 0.119 53.3)
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 #3FA7D9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.052
- Greyblue #77A1B5 ΔE 0.065
- Chefchaouen Blue #4895EF ΔE 0.066
- Cornflower Blue #6495ED ΔE 0.068
- Deep Sky Blue #00BFFF ΔE 0.074
- Dark Sky Blue #448EE4 ΔE 0.075
- Faded Blue #658CBB ΔE 0.078
- Bluegrey #85A3B2 ΔE 0.080
Use #3FA7D9 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.