#3057BF#3057BF

#3057BF is a mid, vivid blue. Relative luminance 0.112; OKLCH L 49.0% C 0.169 H 265.1°. Best body text is #FFFFFF at 6.48:1 contrast (WCAG AA passes).

Color values

HEX	#3057BF
RGB	rgb(48, 87, 191)
HSL	hsl(224, 60%, 47%)
HSV	hsv(224, 75%, 75%)
CMYK	cmyk(74.9%, 54.5%, 0%, 25.1%)
CIE-LAB	lab(39.92, 23.18, -58.60)
CIE-LCH	lch(39.92, 63.02, 291.59°)
OKLab	oklab(49.05% -0.0144 -0.1689)
OKLCH	oklch(49.05% 0.169 265.1)
XYZ	xyz(14.0278, 11.2048, 50.7036)
Luminance	0.1121 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3057BF #BF9830

analogous

#309FBF #3057BF #5030BF

triadic

#3057BF #BF3057 #57BF30

tetradic

#3057BF #BF309F #BF9830 #30BF50

square

#3057BF #BF309F #BF9830 #30BF50

split-complementary

#3057BF #BF5030 #9FBF30

monochromatic

#172A5D #24418E #3057BF #577AD5 #88A0E1

Accessibility & contrast

On white

6.48

#3057BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#3057BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3057BF

6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3057BF	#FFFFFF	#000000	##FFFFFF
##3057BF	1.00	6.48	3.24	6.48
#FFFFFF	6.48	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065C3

Deuteranopia (green-blind)

#0058BD

Tritanopia (blue-blind)

#007082

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3057bf;
/* rgb */ color: rgb(48, 87, 191);
/* oklch */ color: oklch(49.0% 0.169 265.1);

Tailwind

colors: {
  custom: {
    50: '#7c85d3',
    500: '#3057bf',
    950: '#000000',
  },
}

SCSS

$custom: #3057bf;
$custom-light: #7c85d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3057bf",
  "rgb": {
    "r": 48,
    "g": 87,
    "b": 191
  },
  "hsl": {
    "h": 223.636,
    "s": 59.833,
    "l": 46.863
  },
  "oklch": {
    "l": 0.49047,
    "c": 0.16947,
    "h": 265.1
  },
  "luminance": 0.11206
}

Semantic roles & 50–950 ramp

primary

#3057BF

secondary

#CBB680

accent

#B845E3

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #3057BF

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

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