#1B2A52#1B2A52

#1B2A52 is a dark, moderate blue. Relative luminance 0.025; OKLCH L 29.5% C 0.075 H 266.4°. Best body text is #FFFFFF at 14.00:1 contrast (WCAG AA passes).

Color values

HEX	#1B2A52
RGB	rgb(27, 42, 82)
HSL	hsl(224, 50%, 21%)
HSV	hsv(224, 67%, 32%)
CMYK	cmyk(67.1%, 48.8%, 0%, 67.8%)
CIE-LAB	lab(17.91, 8.31, -26.39)
CIE-LCH	lch(17.91, 27.67, 287.47°)
OKLab	oklab(29.52% -0.0047 -0.0753)
OKLCH	oklch(29.52% 0.075 266.4)
XYZ	xyz(2.8024, 2.4979, 8.3155)
Luminance	0.0250 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2A52 #52431B

analogous

#1B4652 #1B2A52 #281B52

triadic

#1B2A52 #521B2A #2A521B

tetradic

#1B2A52 #521B46 #52431B #1B5228

square

#1B2A52 #521B46 #52431B #1B5228

split-complementary

#1B2A52 #52281B #46521B

monochromatic

#080C17 #0C1224 #1B2A52 #2A4280 #3959AE

Accessibility & contrast

On white

14.00

#1B2A52 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#1B2A52 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2A52

14.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2A52	#FFFFFF	#000000	##FFFFFF
##1B2A52	1.00	14.00	1.50	14.00
#FFFFFF	14.00	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#172E54

Deuteranopia (green-blind)

#0F2951

Tritanopia (blue-blind)

#00333A

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1b2a52;
/* rgb */ color: rgb(27, 42, 82);
/* oklch */ color: oklch(29.5% 0.075 266.4);

Tailwind

colors: {
  custom: {
    50: '#5e6383',
    500: '#1b2a52',
    950: '#000000',
  },
}

SCSS

$custom: #1b2a52;
$custom-light: #5e6383;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2a52",
  "rgb": {
    "r": 27,
    "g": 42,
    "b": 82
  },
  "hsl": {
    "h": 223.636,
    "s": 50.459,
    "l": 21.373
  },
  "oklch": {
    "l": 0.29523,
    "c": 0.07544,
    "h": 266.4
  },
  "luminance": 0.02498
}

Semantic roles & 50–950 ramp

primary

#1B2A52

secondary

#887541

accent

#B44EDA

background

#F5F5F8

surface

#E9EAEF

border

#C5C6CA

text

#05050A

muted

#79797C

Preview Lab

Preview with #1B2A52

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

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