#3057A5#3057A5

#3057A5 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.1% C 0.133 H 262.5°. Best body text is #FFFFFF at 6.93:1 contrast (WCAG AA passes).

Color values

HEX	#3057A5
RGB	rgb(48, 87, 165)
HSL	hsl(220, 55%, 42%)
HSV	hsv(220, 71%, 65%)
CMYK	cmyk(70.9%, 47.3%, 0%, 35.3%)
CIE-LAB	lab(38.13, 13.39, -46.18)
CIE-LCH	lch(38.13, 48.08, 286.17°)
OKLab	oklab(47.11% -0.0175 -0.1323)
OKLCH	oklch(47.11% 0.133 262.5)
XYZ	xyz(11.4162, 10.1602, 36.9495)
Luminance	0.1016 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3057A5 #A57E30

analogous

#3092A5 #3057A5 #4430A5

triadic

#3057A5 #A53057 #57A530

tetradic

#3057A5 #A53092 #A57E30 #30A544

square

#3057A5 #A53092 #A57E30 #30A544

split-complementary

#3057A5 #A54430 #92A530

monochromatic

#142546 #223E76 #3057A5 #4874CA #7898D8

Accessibility & contrast

On white

6.93

#3057A5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#3057A5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3057A5

6.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3057A5	#FFFFFF	#000000	##FFFFFF
##3057A5	1.00	6.93	3.03	6.93
#FFFFFF	6.93	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E5FA8

Deuteranopia (green-blind)

#1455A3

Tritanopia (blue-blind)

#006976

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3057a5;
/* rgb */ color: rgb(48, 87, 165);
/* oklch */ color: oklch(47.1% 0.133 262.5);

Tailwind

colors: {
  custom: {
    50: '#7785c0',
    500: '#3057a5',
    950: '#000000',
  },
}

SCSS

$custom: #3057a5;
$custom-light: #7785c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3057a5",
  "rgb": {
    "r": 48,
    "g": 87,
    "b": 165
  },
  "hsl": {
    "h": 220,
    "s": 54.93,
    "l": 41.765
  },
  "oklch": {
    "l": 0.47109,
    "c": 0.13346,
    "h": 262.5
  },
  "luminance": 0.10161
}

Semantic roles & 50–950 ramp

primary

#3057A5

secondary

#C0A671

accent

#AD4ADE

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #3057A5

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

Preview Lab → · Contrast checker → · Palette generator →