#3057AC#3057AC

#3057AC is a mid, vivid blue. Relative luminance 0.104; OKLCH L 47.6% C 0.143 H 263.4°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#3057AC
RGB	rgb(48, 87, 172)
HSL	hsl(221, 56%, 43%)
HSV	hsv(221, 72%, 67%)
CMYK	cmyk(72.1%, 49.4%, 0%, 32.5%)
CIE-LAB	lab(38.59, 16.03, -49.59)
CIE-LCH	lch(38.59, 52.12, 287.91°)
OKLab	oklab(47.61% -0.0164 -0.1424)
OKLCH	oklch(47.61% 0.143 263.4)
XYZ	xyz(12.0709, 10.4221, 40.3972)
Luminance	0.1042 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3057AC #AC8530

analogous

#3095AC #3057AC #4730AC

triadic

#3057AC #AC3057 #57AC30

tetradic

#3057AC #AC3095 #AC8530 #30AC47

square

#3057AC #AC3095 #AC8530 #30AC47

split-complementary

#3057AC #AC4730 #95AC30

monochromatic

#15274C #233F7C #3057AC #4C75CD #7C9ADA

Accessibility & contrast

On white

6.81

#3057AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#3057AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3057AC

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3057AC	#FFFFFF	#000000	##FFFFFF
##3057AC	1.00	6.81	3.08	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2761AF

Deuteranopia (green-blind)

#0055AA

Tritanopia (blue-blind)

#006B79

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3057ac;
/* rgb */ color: rgb(48, 87, 172);
/* oklch */ color: oklch(47.6% 0.143 263.4);

Tailwind

colors: {
  custom: {
    50: '#7885c5',
    500: '#3057ac',
    950: '#000000',
  },
}

SCSS

$custom: #3057ac;
$custom-light: #7885c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3057ac",
  "rgb": {
    "r": 48,
    "g": 87,
    "b": 172
  },
  "hsl": {
    "h": 221.129,
    "s": 56.364,
    "l": 43.137
  },
  "oklch": {
    "l": 0.4761,
    "c": 0.1433,
    "h": 263.4
  },
  "luminance": 0.10423
}

Semantic roles & 50–950 ramp

primary

#3057AC

secondary

#C3AA75

accent

#B048E0

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3057AC

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

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