#3057C9#3057C9

#3057C9 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.8% C 0.183 H 265.7°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#3057C9
RGB	rgb(48, 87, 201)
HSL	hsl(225, 61%, 49%)
HSV	hsv(225, 76%, 79%)
CMYK	cmyk(76.1%, 56.7%, 0%, 21.2%)
CIE-LAB	lab(40.67, 26.92, -63.20)
CIE-LCH	lch(40.67, 68.69, 293.08°)
OKLab	oklab(49.85% -0.0138 -0.1824)
OKLCH	oklch(49.85% 0.183 265.7)
XYZ	xyz(15.1660, 11.6601, 56.6983)
Luminance	0.1166 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3057C9 #C9A230

analogous

#30A4C9 #3057C9 #5630C9

triadic

#3057C9 #C93057 #57C930

tetradic

#3057C9 #C930A4 #C9A230 #30C956

square

#3057C9 #C930A4 #C9A230 #30C956

split-complementary

#3057C9 #C95630 #A4C930

monochromatic

#182C66 #244298 #3057C9 #5E7DD8 #8FA5E4

Accessibility & contrast

On white

6.30

#3057C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#3057C9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3057C9

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3057C9	#FFFFFF	#000000	##FFFFFF
##3057C9	1.00	6.30	3.33	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067CD

Deuteranopia (green-blind)

#0059C7

Tritanopia (blue-blind)

#007387

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3057c9;
/* rgb */ color: rgb(48, 87, 201);
/* oklch */ color: oklch(49.8% 0.183 265.7);

Tailwind

colors: {
  custom: {
    50: '#7f85da',
    500: '#3057c9',
    950: '#000000',
  },
}

SCSS

$custom: #3057c9;
$custom-light: #7f85da;
$custom-dark: #000000;

JSON

{
  "hex": "#3057c9",
  "rgb": {
    "r": 48,
    "g": 87,
    "b": 201
  },
  "hsl": {
    "h": 224.706,
    "s": 61.446,
    "l": 48.824
  },
  "oklch": {
    "l": 0.49845,
    "c": 0.18289,
    "h": 265.7
  },
  "luminance": 0.11662
}

Semantic roles & 50–950 ramp

primary

#3057C9

secondary

#CFBC86

accent

#BB43E5

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3057C9

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

Preview Lab → · Contrast checker → · Palette generator →