#3057AE#3057AE

#3057AE is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.8% C 0.146 H 263.6°. Best body text is #FFFFFF at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#3057AE
RGB	rgb(48, 87, 174)
HSL	hsl(221, 57%, 44%)
HSV	hsv(221, 72%, 68%)
CMYK	cmyk(72.4%, 50%, 0%, 31.8%)
CIE-LAB	lab(38.72, 16.78, -50.56)
CIE-LCH	lch(38.72, 53.27, 288.36°)
OKLab	oklab(47.76% -0.0162 -0.1452)
OKLCH	oklch(47.76% 0.146 263.6)
XYZ	xyz(12.2644, 10.4995, 41.4164)
Luminance	0.1050 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3057AE #AE8730

analogous

#3096AE #3057AE #4830AE

triadic

#3057AE #AE3057 #57AE30

tetradic

#3057AE #AE3096 #AE8730 #30AE48

square

#3057AE #AE3096 #AE8730 #30AE48

split-complementary

#3057AE #AE4830 #96AE30

monochromatic

#16274E #233F7E #3057AE #4D75CE #7D9ADB

Accessibility & contrast

On white

6.77

#3057AE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#3057AE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3057AE

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3057AE	#FFFFFF	#000000	##FFFFFF
##3057AE	1.00	6.77	3.10	6.77
#FFFFFF	6.77	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2561B1

Deuteranopia (green-blind)

#0056AC

Tritanopia (blue-blind)

#006C7A

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3057ae;
/* rgb */ color: rgb(48, 87, 174);
/* oklch */ color: oklch(47.8% 0.146 263.6);

Tailwind

colors: {
  custom: {
    50: '#7985c7',
    500: '#3057ae',
    950: '#000000',
  },
}

SCSS

$custom: #3057ae;
$custom-light: #7985c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3057ae",
  "rgb": {
    "r": 48,
    "g": 87,
    "b": 174
  },
  "hsl": {
    "h": 221.429,
    "s": 56.757,
    "l": 43.529
  },
  "oklch": {
    "l": 0.47756,
    "c": 0.1461,
    "h": 263.6
  },
  "luminance": 0.10501
}

Semantic roles & 50–950 ramp

primary

#3057AE

secondary

#C4AC76

accent

#B148E0

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3057AE

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

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