#2439B1#2439B1

#2439B1 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.6% C 0.190 H 268.4°. Best body text is #FFFFFF at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#2439B1
RGB	rgb(36, 57, 177)
HSL	hsl(231, 66%, 42%)
HSV	hsv(231, 80%, 69%)
CMYK	cmyk(79.7%, 67.8%, 0%, 30.6%)
CIE-LAB	lab(30.58, 36.24, -65.63)
CIE-LCH	lch(30.58, 74.97, 298.91°)
OKLab	oklab(41.6% -0.0054 -0.19)
OKLCH	oklch(41.6% 0.19 268.4)
XYZ	xyz(10.1237, 6.4745, 42.3026)
Luminance	0.0648 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2439B1 #B19C24

analogous

#2480B1 #2439B1 #5624B1

triadic

#2439B1 #B12439 #39B124

tetradic

#2439B1 #B12480 #B19C24 #24B156

square

#2439B1 #B12480 #B19C24 #24B156

split-complementary

#2439B1 #B15624 #80B124

monochromatic

#0F184B #1A297E #2439B1 #3B52D7 #6E7FE1

Accessibility & contrast

On white

9.15

#2439B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#2439B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2439B1

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2439B1	#FFFFFF	#000000	##FFFFFF
##2439B1	1.00	9.15	2.30	9.15
#FFFFFF	9.15	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB5

Deuteranopia (green-blind)

#0041AF

Tritanopia (blue-blind)

#005A70

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2439b1;
/* rgb */ color: rgb(36, 57, 177);
/* oklch */ color: oklch(41.6% 0.190 268.4);

Tailwind

colors: {
  custom: {
    50: '#776fc9',
    500: '#2439b1',
    950: '#000000',
  },
}

SCSS

$custom: #2439b1;
$custom-light: #776fc9;
$custom-dark: #000000;

JSON

{
  "hex": "#2439b1",
  "rgb": {
    "r": 36,
    "g": 57,
    "b": 177
  },
  "hsl": {
    "h": 231.064,
    "s": 66.197,
    "l": 41.765
  },
  "oklch": {
    "l": 0.41603,
    "c": 0.19013,
    "h": 268.4
  },
  "luminance": 0.06476
}

Semantic roles & 50–950 ramp

primary

#2439B1

secondary

#C8BA69

accent

#D03FE9

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2439B1

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

Preview Lab → · Contrast checker → · Palette generator →