#243F80#243F80

#243F80 is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.5% C 0.115 H 264.6°. Best body text is #FFFFFF at 10.01:1 contrast (WCAG AA passes).

Color values

HEX	#243F80
RGB	rgb(36, 63, 128)
HSL	hsl(222, 56%, 32%)
HSV	hsv(222, 72%, 50%)
CMYK	cmyk(71.9%, 50.8%, 0%, 49.8%)
CIE-LAB	lab(28.08, 13.41, -39.81)
CIE-LCH	lch(28.08, 42.00, 288.61°)
OKLab	oklab(38.47% -0.0108 -0.1142)
OKLCH	oklch(38.47% 0.115 264.6)
XYZ	xyz(6.4000, 5.4879, 21.1399)
Luminance	0.0549 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243F80 #806524

analogous

#246D80 #243F80 #372480

triadic

#243F80 #80243F #3F8024

tetradic

#243F80 #80246D #806524 #248037

square

#243F80 #80246D #806524 #248037

split-complementary

#243F80 #803724 #6D8024

monochromatic

#091020 #172750 #243F80 #3157B0 #5075CE

Accessibility & contrast

On white

10.01

#243F80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#243F80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243F80

10.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243F80	#FFFFFF	#000000	##FFFFFF
##243F80	1.00	10.01	2.10	10.01
#FFFFFF	10.01	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B4782

Deuteranopia (green-blind)

#003E7F

Tritanopia (blue-blind)

#004E59

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #243f80;
/* rgb */ color: rgb(36, 63, 128);
/* oklch */ color: oklch(38.5% 0.115 264.6);

Tailwind

colors: {
  custom: {
    50: '#6b73a5',
    500: '#243f80',
    950: '#000000',
  },
}

SCSS

$custom: #243f80;
$custom-light: #6b73a5;
$custom-dark: #000000;

JSON

{
  "hex": "#243f80",
  "rgb": {
    "r": 36,
    "g": 63,
    "b": 128
  },
  "hsl": {
    "h": 222.391,
    "s": 56.098,
    "l": 32.157
  },
  "oklch": {
    "l": 0.3847,
    "c": 0.11471,
    "h": 264.6
  },
  "luminance": 0.05489
}

Semantic roles & 50–950 ramp

primary

#243F80

secondary

#B2954E

accent

#B348DF

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #243F80

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

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