#1B2A8D#1B2A8D

#1B2A8D is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.9% C 0.163 H 268.8°. Best body text is #FFFFFF at 11.92:1 contrast (WCAG AA passes).

Color values

HEX	#1B2A8D
RGB	rgb(27, 42, 141)
HSL	hsl(232, 68%, 33%)
HSV	hsv(232, 81%, 55%)
CMYK	cmyk(80.9%, 70.2%, 0%, 44.7%)
CIE-LAB	lab(23.04, 31.77, -56.15)
CIE-LCH	lch(23.04, 64.51, 299.50°)
OKLab	oklab(34.93% -0.0034 -0.1626)
OKLCH	oklch(34.93% 0.163 268.8)
XYZ	xyz(6.0860, 3.8113, 25.6090)
Luminance	0.0381 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2A8D #8D7E1B

analogous

#1B638D #1B2A8D #451B8D

triadic

#1B2A8D #8D1B2A #2A8D1B

tetradic

#1B2A8D #8D1B63 #8D7E1B #1B8D45

square

#1B2A8D #8D1B63 #8D7E1B #1B8D45

split-complementary

#1B2A8D #8D451B #638D1B

monochromatic

#070B26 #111B5A #1B2A8D #2539C0 #475ADC

Accessibility & contrast

On white

11.92

#1B2A8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#1B2A8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2A8D

11.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2A8D	#FFFFFF	#000000	##FFFFFF
##1B2A8D	1.00	11.92	1.76	11.92
#FFFFFF	11.92	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C90

Deuteranopia (green-blind)

#00318B

Tritanopia (blue-blind)

#004558

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1b2a8d;
/* rgb */ color: rgb(27, 42, 141);
/* oklch */ color: oklch(34.9% 0.163 268.8);

Tailwind

colors: {
  custom: {
    50: '#6d64af',
    500: '#1b2a8d',
    950: '#000000',
  },
}

SCSS

$custom: #1b2a8d;
$custom-light: #6d64af;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2a8d",
  "rgb": {
    "r": 27,
    "g": 42,
    "b": 141
  },
  "hsl": {
    "h": 232.105,
    "s": 67.857,
    "l": 32.941
  },
  "oklch": {
    "l": 0.34934,
    "c": 0.16265,
    "h": 268.8
  },
  "luminance": 0.03812
}

Semantic roles & 50–950 ramp

primary

#1B2A8D

secondary

#BDAE46

accent

#D43DEB

background

#F7F5FA

surface

#EDEAF5

border

#C8C6CF

text

#080511

muted

#7B7980

Preview Lab

Preview with #1B2A8D

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

Preview Lab → · Contrast checker → · Palette generator →