#3057B3#3057B3

#3057B3 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.1% C 0.153 H 264.2°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#3057B3
RGB	rgb(48, 87, 179)
HSL	hsl(222, 58%, 45%)
HSV	hsv(222, 73%, 70%)
CMYK	cmyk(73.2%, 51.4%, 0%, 29.8%)
CIE-LAB	lab(39.07, 18.67, -52.96)
CIE-LCH	lch(39.07, 56.15, 289.42°)
OKLab	oklab(48.13% -0.0156 -0.1522)
OKLCH	oklch(48.13% 0.153 264.2)
XYZ	xyz(12.7609, 10.6981, 44.0315)
Luminance	0.1070 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3057B3 #B38C30

analogous

#3099B3 #3057B3 #4A30B3

triadic

#3057B3 #B33057 #57B330

tetradic

#3057B3 #B33099 #B38C30 #30B34A

square

#3057B3 #B33099 #B38C30 #30B34A

split-complementary

#3057B3 #B34A30 #99B330

monochromatic

#162852 #234083 #3057B3 #5076D0 #809CDD

Accessibility & contrast

On white

6.69

#3057B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#3057B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3057B3

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3057B3	#FFFFFF	#000000	##FFFFFF
##3057B3	1.00	6.69	3.14	6.69
#FFFFFF	6.69	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D62B6

Deuteranopia (green-blind)

#0056B1

Tritanopia (blue-blind)

#006D7C

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3057b3;
/* rgb */ color: rgb(48, 87, 179);
/* oklch */ color: oklch(48.1% 0.153 264.2);

Tailwind

colors: {
  custom: {
    50: '#7a85ca',
    500: '#3057b3',
    950: '#000000',
  },
}

SCSS

$custom: #3057b3;
$custom-light: #7a85ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3057b3",
  "rgb": {
    "r": 48,
    "g": 87,
    "b": 179
  },
  "hsl": {
    "h": 222.137,
    "s": 57.709,
    "l": 44.51
  },
  "oklch": {
    "l": 0.48126,
    "c": 0.15304,
    "h": 264.2
  },
  "luminance": 0.10699
}

Semantic roles & 50–950 ramp

primary

#3057B3

secondary

#C6AF79

accent

#B347E1

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3057B3

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

Preview Lab → · Contrast checker → · Palette generator →