#3157B2#3157B2

#3157B2 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.1% C 0.151 H 264.4°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#3157B2
RGB	rgb(49, 87, 178)
HSL	hsl(222, 57%, 45%)
HSV	hsv(222, 72%, 70%)
CMYK	cmyk(72.5%, 51.1%, 0%, 30.2%)
CIE-LAB	lab(39.04, 18.43, -52.41)
CIE-LCH	lch(39.04, 55.55, 289.37°)
OKLab	oklab(48.1% -0.0148 -0.1506)
OKLCH	oklch(48.1% 0.151 264.4)
XYZ	xyz(12.7079, 10.6824, 43.5030)
Luminance	0.1068 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3157B2 #B28C31

analogous

#3197B2 #3157B2 #4C31B2

triadic

#3157B2 #B23157 #57B231

tetradic

#3157B2 #B23197 #B28C31 #31B24C

square

#3157B2 #B23197 #B28C31 #31B24C

split-complementary

#3157B2 #B24C31 #97B231

monochromatic

#172852 #244082 #3157B2 #5176CF #819CDC

Accessibility & contrast

On white

6.69

#3157B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#3157B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3157B2

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3157B2	#FFFFFF	#000000	##FFFFFF
##3157B2	1.00	6.69	3.14	6.69
#FFFFFF	6.69	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F62B5

Deuteranopia (green-blind)

#0056B0

Tritanopia (blue-blind)

#006D7C

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3157b2;
/* rgb */ color: rgb(49, 87, 178);
/* oklch */ color: oklch(48.1% 0.151 264.4);

Tailwind

colors: {
  custom: {
    50: '#7a85ca',
    500: '#3157b2',
    950: '#000000',
  },
}

SCSS

$custom: #3157b2;
$custom-light: #7a85ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3157b2",
  "rgb": {
    "r": 49,
    "g": 87,
    "b": 178
  },
  "hsl": {
    "h": 222.326,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.48095,
    "c": 0.15135,
    "h": 264.4
  },
  "luminance": 0.10684
}

Semantic roles & 50–950 ramp

primary

#3157B2

secondary

#C5AF79

accent

#B348E0

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3157B2

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

Preview Lab → · Contrast checker → · Palette generator →