#3FA2D8
Closest named color: Chefchaouen Blue (#4895EF). oklch(67.8% 0.121 236.5), rgb(63, 162, 216).
Aa
Black text reads best on this color (7.37:1).
About this color
#3FA2D8 is a medium-light, moderately saturated blue. In OKLCH its lightness is 68%, its chroma 0.121 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.055 away. Black text reads best on it, at 7.37:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.37:1 |
| White text | 2.84:1 |
Values
| HEX | #3FA2D8 |
| RGB | rgb(63, 162, 216) |
| HSL | hsl(201, 66%, 55%) |
| OKLCH | oklch(67.8% 0.121 236.5) |
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 #3FA2D8 | 2.84:1 | Fails | Lc -59.6 | Large or bold text, headings |
| Black text on #3FA2D8 | 7.37:1 | AAA | Lc 49.8 | Large or bold text, headings |
| #3FA2D8 text on white | 2.84:1 | Fails | Lc 54.3 | Large or bold text, headings |
| #3FA2D8 text on black | 7.37:1 | AAA | Lc -47.5 | 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
#DDECF7
oklch(93.5% 0.022 239.4)
-
Step 200
200
#C0DEF2
oklch(88.5% 0.042 237.2)
-
Step 300
300
#91C9EB
oklch(80.9% 0.075 235.6)
-
Step 400
400 (this color)
#3FA2D8
oklch(67.8% 0.121 236.5)
-
Step 500
500
#0094D1
oklch(63.1% 0.137 236.6)
-
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)
#3FA2D8 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) | #88A1DB | 0.071 |
| Deuteranopia (no green cones) | #7392D7 | 0.059 |
| Tritanopia (no blue cones) | #00B0B4 | 0.080 |
| Achromatopsia (no color) | #999999 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FA2D8
#3FA2D8
oklch(67.8% 0.121 236.5)
- #CF8347
#CF8347
oklch(67.8% 0.12 57.1)
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 #3FA2D8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.055
- Cornflower Blue #6495ED ΔE 0.060
- Turquoise Blue #06B1C4 ΔE 0.061
- Dark Sky Blue #448EE4 ΔE 0.062
- Faded Blue #658CBB ΔE 0.067
- Greyblue #77A1B5 ΔE 0.068
- Cadet Blue #5F9EA0 ΔE 0.083
- Water Blue #0E87CC ΔE 0.083
Use #3FA2D8 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.