#3057B2#3057B2

#3057B2 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.1% C 0.152 H 264.1°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#3057B2
RGB	rgb(48, 87, 178)
HSL	hsl(222, 58%, 44%)
HSV	hsv(222, 73%, 70%)
CMYK	cmyk(73%, 51.1%, 0%, 30.2%)
CIE-LAB	lab(39.00, 18.29, -52.48)
CIE-LCH	lch(39.00, 55.57, 289.22°)
OKLab	oklab(48.05% -0.0157 -0.1509)
OKLCH	oklch(48.05% 0.152 264.1)
XYZ	xyz(12.6602, 10.6578, 43.5008)
Luminance	0.1066 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3057B2 #B28B30

analogous

#3098B2 #3057B2 #4A30B2

triadic

#3057B2 #B23057 #57B230

tetradic

#3057B2 #B23098 #B28B30 #30B24A

square

#3057B2 #B23098 #B28B30 #30B24A

split-complementary

#3057B2 #B24A30 #98B230

monochromatic

#162852 #233F82 #3057B2 #5076D0 #809CDD

Accessibility & contrast

On white

6.71

#3057B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#3057B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3057B2

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3057B2	#FFFFFF	#000000	##FFFFFF
##3057B2	1.00	6.71	3.13	6.71
#FFFFFF	6.71	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.71	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: #3057b2;
/* rgb */ color: rgb(48, 87, 178);
/* oklch */ color: oklch(48.1% 0.152 264.1);

Tailwind

colors: {
  custom: {
    50: '#7a85ca',
    500: '#3057b2',
    950: '#000000',
  },
}

SCSS

$custom: #3057b2;
$custom-light: #7a85ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3057b2",
  "rgb": {
    "r": 48,
    "g": 87,
    "b": 178
  },
  "hsl": {
    "h": 222,
    "s": 57.522,
    "l": 44.314
  },
  "oklch": {
    "l": 0.48052,
    "c": 0.15166,
    "h": 264.1
  },
  "luminance": 0.10659
}

Semantic roles & 50–950 ramp

primary

#3057B2

secondary

#C6AE78

accent

#B347E1

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3057B2

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

Preview Lab → · Contrast checker → · Palette generator →