#3FA0D7
Closest named color: Chefchaouen Blue (#4895EF). oklch(67.3% 0.121 237.5), rgb(63, 160, 215).
Aa
Black text reads best on this color (7.22:1).
About this color
#3FA0D7 is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, 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 0.053 away. Black text reads best on it, at 7.22:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.22:1 |
| White text | 2.90:1 |
Values
| HEX | #3FA0D7 |
| RGB | rgb(63, 160, 215) |
| HSL | hsl(202, 66%, 55%) |
| OKLCH | oklch(67.3% 0.121 237.5) |
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 #3FA0D7 | 2.90:1 | Fails | Lc -60.4 | Content text, not long reading |
| Black text on #3FA0D7 | 7.22:1 | AAA | Lc 48.9 | Large or bold text, headings |
| #3FA0D7 text on white | 2.90:1 | Fails | Lc 55.1 | Large or bold text, headings |
| #3FA0D7 text on black | 7.22:1 | AAA | Lc -46.7 | 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
#EFF7FC
oklch(97.2% 0.011 234.8)
-
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
#92C8EC
oklch(80.8% 0.076 238.1)
-
Step 400
400 (this color)
#3FA0D7
oklch(67.3% 0.121 237.5)
-
Step 500
500
#0094D2
oklch(63.2% 0.138 237.1)
-
Step 600
600
#007CB2
oklch(55.6% 0.123 237.7)
-
Step 700
700
#006896
oklch(49.1% 0.108 237.6)
-
Step 800
800
#00557C
oklch(42.7% 0.094 237.9)
-
Step 900
900
#004768
oklch(37.7% 0.083 237.5)
-
Step 950
950
#002A40
oklch(27% 0.06 237.8)
#3FA0D7 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) | #86A0DA | 0.069 |
| Deuteranopia (no green cones) | #7191D6 | 0.056 |
| Tritanopia (no blue cones) | #00AEB3 | 0.080 |
| Achromatopsia (no color) | #979797 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FA0D7
#3FA0D7
oklch(67.3% 0.121 237.5)
- #CD8145
#CD8145
oklch(67.2% 0.121 57)
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 #3FA0D7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.053
- Dark Sky Blue #448EE4 ΔE 0.058
- Cornflower Blue #6495ED ΔE 0.058
- Faded Blue #658CBB ΔE 0.063
- Turquoise Blue #06B1C4 ΔE 0.065
- Greyblue #77A1B5 ΔE 0.069
- Water Blue #0E87CC ΔE 0.078
- Soft Blue #6488EA ΔE 0.080
Use #3FA0D7 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.