#3157AD#3157AD

#3157AD is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.7% C 0.144 H 263.8°. Best body text is #FFFFFF at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#3157AD
RGB	rgb(49, 87, 173)
HSL	hsl(222, 56%, 44%)
HSV	hsv(222, 72%, 68%)
CMYK	cmyk(71.7%, 49.7%, 0%, 32.2%)
CIE-LAB	lab(38.70, 16.55, -50.00)
CIE-LCH	lch(38.70, 52.67, 288.31°)
OKLab	oklab(47.73% -0.0155 -0.1435)
OKLCH	oklch(47.73% 0.144 263.8)
XYZ	xyz(12.2150, 10.4852, 40.9072)
Luminance	0.1049 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3157AD #AD8731

analogous

#3195AD #3157AD #4931AD

triadic

#3157AD #AD3157 #57AD31

tetradic

#3157AD #AD3195 #AD8731 #31AD49

square

#3157AD #AD3195 #AD8731 #31AD49

split-complementary

#3157AD #AD4931 #95AD31

monochromatic

#16274E #233F7D #3157AD #4E75CD #7E9ADA

Accessibility & contrast

On white

6.78

#3157AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#3157AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3157AD

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3157AD	#FFFFFF	#000000	##FFFFFF
##3157AD	1.00	6.78	3.10	6.78
#FFFFFF	6.78	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2661B0

Deuteranopia (green-blind)

#0056AB

Tritanopia (blue-blind)

#006B7A

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3157ad;
/* rgb */ color: rgb(49, 87, 173);
/* oklch */ color: oklch(47.7% 0.144 263.8);

Tailwind

colors: {
  custom: {
    50: '#7985c6',
    500: '#3157ad',
    950: '#000000',
  },
}

SCSS

$custom: #3157ad;
$custom-light: #7985c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3157ad",
  "rgb": {
    "r": 49,
    "g": 87,
    "b": 173
  },
  "hsl": {
    "h": 221.613,
    "s": 55.856,
    "l": 43.529
  },
  "oklch": {
    "l": 0.47727,
    "c": 0.14438,
    "h": 263.8
  },
  "luminance": 0.10486
}

Semantic roles & 50–950 ramp

primary

#3157AD

secondary

#C3AC77

accent

#B149DF

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3157AD

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

Preview Lab → · Contrast checker → · Palette generator →