#3057AA#3057AA

#3057AA is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.5% C 0.141 H 263.2°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#3057AA
RGB	rgb(48, 87, 170)
HSL	hsl(221, 56%, 43%)
HSV	hsv(221, 72%, 67%)
CMYK	cmyk(71.8%, 48.8%, 0%, 33.3%)
CIE-LAB	lab(38.46, 15.27, -48.62)
CIE-LCH	lch(38.46, 50.96, 287.44°)
OKLab	oklab(47.47% -0.0167 -0.1395)
OKLCH	oklch(47.47% 0.141 263.2)
XYZ	xyz(11.8802, 10.3458, 39.3932)
Luminance	0.1035 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3057AA #AA8330

analogous

#3094AA #3057AA #4630AA

triadic

#3057AA #AA3057 #57AA30

tetradic

#3057AA #AA3094 #AA8330 #30AA46

square

#3057AA #AA3094 #AA8330 #30AA46

split-complementary

#3057AA #AA4630 #94AA30

monochromatic

#15264B #233F7A #3057AA #4B74CC #7B99DA

Accessibility & contrast

On white

6.84

#3057AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#3057AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3057AA

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3057AA	#FFFFFF	#000000	##FFFFFF
##3057AA	1.00	6.84	3.07	6.84
#FFFFFF	6.84	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2960AD

Deuteranopia (green-blind)

#0455A8

Tritanopia (blue-blind)

#006B78

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3057aa;
/* rgb */ color: rgb(48, 87, 170);
/* oklch */ color: oklch(47.5% 0.141 263.2);

Tailwind

colors: {
  custom: {
    50: '#7885c4',
    500: '#3057aa',
    950: '#000000',
  },
}

SCSS

$custom: #3057aa;
$custom-light: #7885c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3057aa",
  "rgb": {
    "r": 48,
    "g": 87,
    "b": 170
  },
  "hsl": {
    "h": 220.82,
    "s": 55.963,
    "l": 42.745
  },
  "oklch": {
    "l": 0.47465,
    "c": 0.1405,
    "h": 263.2
  },
  "luminance": 0.10347
}

Semantic roles & 50–950 ramp

primary

#3057AA

secondary

#C2A974

accent

#AF49DF

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3057AA

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

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