#2439B0#2439B0

#2439B0 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.5% C 0.189 H 268.4°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#2439B0
RGB	rgb(36, 57, 176)
HSL	hsl(231, 66%, 42%)
HSV	hsv(231, 80%, 69%)
CMYK	cmyk(79.5%, 67.6%, 0%, 31%)
CIE-LAB	lab(30.48, 35.87, -65.19)
CIE-LCH	lch(30.48, 74.41, 298.82°)
OKLab	oklab(41.5% -0.0054 -0.1888)
OKLCH	oklch(41.5% 0.189 268.4)
XYZ	xyz(10.0244, 6.4348, 41.7796)
Luminance	0.0644 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2439B0 #B09B24

analogous

#247FB0 #2439B0 #5524B0

triadic

#2439B0 #B02439 #39B024

tetradic

#2439B0 #B0247F #B09B24 #24B055

square

#2439B0 #B0247F #B09B24 #24B055

split-complementary

#2439B0 #B05524 #7FB024

monochromatic

#0F184A #1A297D #2439B0 #3A52D7 #6D7FE1

Accessibility & contrast

On white

9.18

#2439B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#2439B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2439B0

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2439B0	#FFFFFF	#000000	##FFFFFF
##2439B0	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB4

Deuteranopia (green-blind)

#0041AE

Tritanopia (blue-blind)

#00596F

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2439b0;
/* rgb */ color: rgb(36, 57, 176);
/* oklch */ color: oklch(41.5% 0.189 268.4);

Tailwind

colors: {
  custom: {
    50: '#776fc9',
    500: '#2439b0',
    950: '#000000',
  },
}

SCSS

$custom: #2439b0;
$custom-light: #776fc9;
$custom-dark: #000000;

JSON

{
  "hex": "#2439b0",
  "rgb": {
    "r": 36,
    "g": 57,
    "b": 176
  },
  "hsl": {
    "h": 231,
    "s": 66.038,
    "l": 41.569
  },
  "oklch": {
    "l": 0.41504,
    "c": 0.18884,
    "h": 268.4
  },
  "luminance": 0.06436
}

Semantic roles & 50–950 ramp

primary

#2439B0

secondary

#C8B968

accent

#CF3FE9

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2439B0

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

Preview Lab → · Contrast checker → · Palette generator →