#3157BC#3157BC

#3157BC is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.9% C 0.165 H 265.2°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#3157BC
RGB	rgb(49, 87, 188)
HSL	hsl(224, 59%, 46%)
HSV	hsv(224, 74%, 74%)
CMYK	cmyk(73.9%, 53.7%, 0%, 26.3%)
CIE-LAB	lab(39.75, 22.18, -57.13)
CIE-LCH	lch(39.75, 61.29, 291.22°)
OKLab	oklab(48.86% -0.0138 -0.1645)
OKLCH	oklch(48.86% 0.165 265.2)
XYZ	xyz(13.7487, 11.0987, 48.9849)
Luminance	0.1110 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3157BC #BC9631

analogous

#319DBC #3157BC #5131BC

triadic

#3157BC #BC3157 #57BC31

tetradic

#3157BC #BC319D #BC9631 #31BC51

square

#3157BC #BC319D #BC9631 #31BC51

split-complementary

#3157BC #BC5131 #9DBC31

monochromatic

#182A5B #24418B #3157BC #5779D3 #88A0E0

Accessibility & contrast

On white

6.52

#3157BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#3157BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3157BC

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3157BC	#FFFFFF	#000000	##FFFFFF
##3157BC	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0664C0

Deuteranopia (green-blind)

#0058BA

Tritanopia (blue-blind)

#007081

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3157bc;
/* rgb */ color: rgb(49, 87, 188);
/* oklch */ color: oklch(48.9% 0.165 265.2);

Tailwind

colors: {
  custom: {
    50: '#7c85d1',
    500: '#3157bc',
    950: '#000000',
  },
}

SCSS

$custom: #3157bc;
$custom-light: #7c85d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3157bc",
  "rgb": {
    "r": 49,
    "g": 87,
    "b": 188
  },
  "hsl": {
    "h": 223.597,
    "s": 58.65,
    "l": 46.471
  },
  "oklch": {
    "l": 0.48855,
    "c": 0.16511,
    "h": 265.2
  },
  "luminance": 0.111
}

Semantic roles & 50–950 ramp

primary

#3157BC

secondary

#CAB57F

accent

#B746E2

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3157BC

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

Preview Lab → · Contrast checker → · Palette generator →