#182E55#182E55

#182E55 is a dark, moderate blue. Relative luminance 0.028; OKLCH L 30.6% C 0.076 H 261.0°. Best body text is #FFFFFF at 13.45:1 contrast (WCAG AA passes).

Color values

HEX	#182E55
RGB	rgb(24, 46, 85)
HSL	hsl(218, 56%, 21%)
HSV	hsv(218, 72%, 33%)
CMYK	cmyk(71.8%, 45.9%, 0%, 66.7%)
CIE-LAB	lab(19.24, 5.99, -26.28)
CIE-LCH	lch(19.24, 26.96, 282.84°)
OKLab	oklab(30.57% -0.0119 -0.075)
OKLCH	oklch(30.57% 0.076 261)
XYZ	xyz(2.9928, 2.8038, 8.9760)
Luminance	0.0280 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182E55 #553F18

analogous

#184D55 #182E55 #211855

triadic

#182E55 #55182E #2E5518

tetradic

#182E55 #55184D #553F18 #185521

square

#182E55 #55184D #553F18 #185521

split-complementary

#182E55 #552118 #4D5518

monochromatic

#070D18 #0B1425 #182E55 #254885 #3362B4

Accessibility & contrast

On white

13.45

#182E55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#182E55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182E55

13.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182E55	#FFFFFF	#000000	##FFFFFF
##182E55	1.00	13.45	1.56	13.45
#FFFFFF	13.45	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C3257

Deuteranopia (green-blind)

#122C54

Tritanopia (blue-blind)

#00373D

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #182e55;
/* rgb */ color: rgb(24, 46, 85);
/* oklch */ color: oklch(30.6% 0.076 261.0);

Tailwind

colors: {
  custom: {
    50: '#5d6685',
    500: '#182e55',
    950: '#000000',
  },
}

SCSS

$custom: #182e55;
$custom-light: #5d6685;
$custom-dark: #000000;

JSON

{
  "hex": "#182e55",
  "rgb": {
    "r": 24,
    "g": 46,
    "b": 85
  },
  "hsl": {
    "h": 218.361,
    "s": 55.963,
    "l": 21.373
  },
  "oklch": {
    "l": 0.30567,
    "c": 0.07592,
    "h": 261
  },
  "luminance": 0.02804
}

Semantic roles & 50–950 ramp

primary

#182E55

secondary

#8C6F3D

accent

#A949DF

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04050B

muted

#797A7C

Preview Lab

Preview with #182E55

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

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