#3958CB#3958CB

#3958CB is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.6% C 0.182 H 267.8°. Best body text is #FFFFFF at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#3958CB
RGB	rgb(57, 88, 203)
HSL	hsl(227, 58%, 51%)
HSV	hsv(227, 72%, 80%)
CMYK	cmyk(71.9%, 56.7%, 0%, 20.4%)
CIE-LAB	lab(41.47, 28.10, -63.04)
CIE-LCH	lch(41.47, 69.02, 294.02°)
OKLab	oklab(50.6% -0.0068 -0.1817)
OKLCH	oklch(50.6% 0.182 267.8)
XYZ	xyz(15.9528, 12.1594, 57.9946)
Luminance	0.1216 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3958CB #CBAC39

analogous

#39A1CB #3958CB #6339CB

triadic

#3958CB #CB3958 #58CB39

tetradic

#3958CB #CB39A1 #CBAC39 #39CB63

square

#3958CB #CB39A1 #CBAC39 #39CB63

split-complementary

#3958CB #CB6339 #A1CB39

monochromatic

#1D2E6D #29429D #3958CB #6981D8 #9AAAE4

Accessibility & contrast

On white

6.12

#3958CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#3958CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3958CB

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3958CB	#FFFFFF	#000000	##FFFFFF
##3958CB	1.00	6.12	3.43	6.12
#FFFFFF	6.12	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069CF

Deuteranopia (green-blind)

#005BC9

Tritanopia (blue-blind)

#007489

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3958cb;
/* rgb */ color: rgb(57, 88, 203);
/* oklch */ color: oklch(50.6% 0.182 267.8);

Tailwind

colors: {
  custom: {
    50: '#8286dc',
    500: '#3958cb',
    950: '#000000',
  },
}

SCSS

$custom: #3958cb;
$custom-light: #8286dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3958cb",
  "rgb": {
    "r": 57,
    "g": 88,
    "b": 203
  },
  "hsl": {
    "h": 227.26,
    "s": 58.4,
    "l": 50.98
  },
  "oklch": {
    "l": 0.50598,
    "c": 0.18185,
    "h": 267.8
  },
  "luminance": 0.12161
}

Semantic roles & 50–950 ramp

primary

#3958CB

secondary

#D0C390

accent

#C146E2

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3958CB

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

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