#3057BD#3057BD

#3057BD is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.9% C 0.167 H 265.0°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#3057BD
RGB	rgb(48, 87, 189)
HSL	hsl(223, 59%, 46%)
HSV	hsv(223, 75%, 74%)
CMYK	cmyk(74.6%, 54%, 0%, 25.9%)
CIE-LAB	lab(39.78, 22.43, -57.67)
CIE-LCH	lch(39.78, 61.88, 291.26°)
OKLab	oklab(48.89% -0.0146 -0.1661)
OKLCH	oklch(48.89% 0.167 265)
XYZ	xyz(13.8092, 11.1174, 49.5523)
Luminance	0.1112 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3057BD #BD9630

analogous

#309EBD #3057BD #4F30BD

triadic

#3057BD #BD3057 #57BD30

tetradic

#3057BD #BD309E #BD9630 #30BD4F

square

#3057BD #BD309E #BD9630 #30BD4F

split-complementary

#3057BD #BD4F30 #9EBD30

monochromatic

#172A5B #24418C #3057BD #5679D4 #87A0E0

Accessibility & contrast

On white

6.51

#3057BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#3057BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3057BD

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3057BD	#FFFFFF	#000000	##FFFFFF
##3057BD	1.00	6.51	3.22	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0265C1

Deuteranopia (green-blind)

#0058BB

Tritanopia (blue-blind)

#007081

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3057bd;
/* rgb */ color: rgb(48, 87, 189);
/* oklch */ color: oklch(48.9% 0.167 265.0);

Tailwind

colors: {
  custom: {
    50: '#7c85d2',
    500: '#3057bd',
    950: '#000000',
  },
}

SCSS

$custom: #3057bd;
$custom-light: #7c85d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3057bd",
  "rgb": {
    "r": 48,
    "g": 87,
    "b": 189
  },
  "hsl": {
    "h": 223.404,
    "s": 59.494,
    "l": 46.471
  },
  "oklch": {
    "l": 0.48891,
    "c": 0.16677,
    "h": 265
  },
  "luminance": 0.11119
}

Semantic roles & 50–950 ramp

primary

#3057BD

secondary

#CAB57F

accent

#B745E3

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #3057BD

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

Preview Lab → · Contrast checker → · Palette generator →