#3957DC#3957DC

#3957DC is a mid, highly saturated blue. Relative luminance 0.129; OKLCH L 51.8% C 0.205 H 268.4°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#3957DC
RGB	rgb(57, 87, 220)
HSL	hsl(229, 70%, 54%)
HSV	hsv(229, 74%, 86%)
CMYK	cmyk(74.1%, 60.5%, 0%, 13.7%)
CIE-LAB	lab(42.54, 34.86, -71.05)
CIE-LCH	lch(42.54, 79.14, 296.13°)
OKLab	oklab(51.81% -0.0058 -0.2053)
OKLCH	oklch(51.81% 0.205 268.4)
XYZ	xyz(18.0093, 12.8516, 69.2277)
Luminance	0.1285 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3957DC #DCBE39

analogous

#39A9DC #3957DC #6D39DC

triadic

#3957DC #DC3957 #57DC39

tetradic

#3957DC #DC39A9 #DCBE39 #39DC6D

square

#3957DC #DC39A9 #DCBE39 #39DC6D

split-complementary

#3957DC #DC6D39 #A9DC39

monochromatic

#172B83 #203CB7 #3957DC #6D83E5 #A1AFEE

Accessibility & contrast

On white

5.88

#3957DC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#3957DC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3957DC

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3957DC	#FFFFFF	#000000	##FFFFFF
##3957DC	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CE0

Deuteranopia (green-blind)

#005DD9

Tritanopia (blue-blind)

#007991

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3957dc;
/* rgb */ color: rgb(57, 87, 220);
/* oklch */ color: oklch(51.8% 0.205 268.4);

Tailwind

colors: {
  custom: {
    50: '#8686e8',
    500: '#3957dc',
    950: '#000000',
  },
}

SCSS

$custom: #3957dc;
$custom-light: #8686e8;
$custom-dark: #000000;

JSON

{
  "hex": "#3957dc",
  "rgb": {
    "r": 57,
    "g": 87,
    "b": 220
  },
  "hsl": {
    "h": 228.957,
    "s": 69.957,
    "l": 54.314
  },
  "oklch": {
    "l": 0.51809,
    "c": 0.20534,
    "h": 268.4
  },
  "luminance": 0.12854
}

Semantic roles & 50–950 ramp

primary

#3957DC

secondary

#DBCE96

accent

#CC3BED

background

#F9F8FE

surface

#F1EFFD

border

#CBCAD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #3957DC

Body copy rendered with the generated semantic roles for this colour.

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