#3043B1#3043B1

#3043B1 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.0% C 0.175 H 270.0°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#3043B1
RGB	rgb(48, 67, 177)
HSL	hsl(231, 57%, 44%)
HSV	hsv(231, 73%, 69%)
CMYK	cmyk(72.9%, 62.1%, 0%, 30.6%)
CIE-LAB	lab(33.60, 31.05, -60.66)
CIE-LCH	lch(33.60, 68.15, 297.11°)
OKLab	oklab(43.97% -0.0001 -0.1752)
OKLCH	oklch(43.97% 0.175 270)
XYZ	xyz(11.1592, 7.8159, 42.5070)
Luminance	0.0782 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3043B1 #B19E30

analogous

#3084B1 #3043B1 #5E30B1

triadic

#3043B1 #B13043 #43B130

tetradic

#3043B1 #B13084 #B19E30 #30B15E

square

#3043B1 #B13084 #B19E30 #30B15E

split-complementary

#3043B1 #B15E30 #84B130

monochromatic

#161F51 #233181 #3043B1 #4F62CF #7F8DDC

Accessibility & contrast

On white

8.19

#3043B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#3043B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3043B1

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3043B1	#FFFFFF	#000000	##FFFFFF
##3043B1	1.00	8.19	2.56	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B5

Deuteranopia (green-blind)

#0049AF

Tritanopia (blue-blind)

#005F73

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3043b1;
/* rgb */ color: rgb(48, 67, 177);
/* oklch */ color: oklch(44.0% 0.175 270.0);

Tailwind

colors: {
  custom: {
    50: '#7b77c9',
    500: '#3043b1',
    950: '#000000',
  },
}

SCSS

$custom: #3043b1;
$custom-light: #7b77c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3043b1",
  "rgb": {
    "r": 48,
    "g": 67,
    "b": 177
  },
  "hsl": {
    "h": 231.163,
    "s": 57.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.43973,
    "c": 0.17519,
    "h": 270
  },
  "luminance": 0.07817
}

Semantic roles & 50–950 ramp

primary

#3043B1

secondary

#C5BA78

accent

#CA47E1

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3043B1

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

Preview Lab → · Contrast checker → · Palette generator →