#1B2A85#1B2A85

#1B2A85 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.1% C 0.152 H 269.0°. Best body text is #FFFFFF at 12.23:1 contrast (WCAG AA passes).

Color values

HEX	#1B2A85
RGB	rgb(27, 42, 133)
HSL	hsl(232, 66%, 31%)
HSV	hsv(232, 80%, 52%)
CMYK	cmyk(79.7%, 68.4%, 0%, 47.8%)
CIE-LAB	lab(22.24, 28.72, -52.47)
CIE-LCH	lch(22.24, 59.81, 298.70°)
OKLab	oklab(34.11% -0.0027 -0.1519)
OKLCH	oklch(34.11% 0.152 269)
XYZ	xyz(5.5121, 3.5818, 22.5866)
Luminance	0.0358 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2A85 #85761B

analogous

#1B5F85 #1B2A85 #411B85

triadic

#1B2A85 #851B2A #2A851B

tetradic

#1B2A85 #851B5F #85761B #1B8541

square

#1B2A85 #851B5F #85761B #1B8541

split-complementary

#1B2A85 #85411B #5F851B

monochromatic

#060A1F #111A52 #1B2A85 #253AB8 #4257D9

Accessibility & contrast

On white

12.23

#1B2A85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#1B2A85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2A85

12.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2A85	#FFFFFF	#000000	##FFFFFF
##1B2A85	1.00	12.23	1.72	12.23
#FFFFFF	12.23	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A88

Deuteranopia (green-blind)

#003083

Tritanopia (blue-blind)

#004353

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1b2a85;
/* rgb */ color: rgb(27, 42, 133);
/* oklch */ color: oklch(34.1% 0.152 269.0);

Tailwind

colors: {
  custom: {
    50: '#6a63a9',
    500: '#1b2a85',
    950: '#000000',
  },
}

SCSS

$custom: #1b2a85;
$custom-light: #6a63a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2a85",
  "rgb": {
    "r": 27,
    "g": 42,
    "b": 133
  },
  "hsl": {
    "h": 231.509,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.34109,
    "c": 0.15188,
    "h": 269
  },
  "luminance": 0.03582
}

Semantic roles & 50–950 ramp

primary

#1B2A85

secondary

#B8A844

accent

#D13FE9

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#080510

muted

#7A797F

Preview Lab

Preview with #1B2A85

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

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