#1B248A#1B248A

#1B248A is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.6% C 0.165 H 269.9°. Best body text is #FFFFFF at 12.61:1 contrast (WCAG AA passes).

Color values

HEX	#1B248A
RGB	rgb(27, 36, 138)
HSL	hsl(235, 67%, 32%)
HSV	hsv(235, 80%, 54%)
CMYK	cmyk(80.4%, 73.9%, 0%, 45.9%)
CIE-LAB	lab(21.32, 34.51, -57.11)
CIE-LCH	lch(21.32, 66.73, 301.14°)
OKLab	oklab(33.6% -0.0002 -0.1654)
OKLCH	oklch(33.6% 0.165 269.9)
XYZ	xyz(5.6687, 3.3291, 24.3836)
Luminance	0.0333 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B248A #8A811B

analogous

#1B5C8A #1B248A #491B8A

triadic

#1B248A #8A1B24 #248A1B

tetradic

#1B248A #8A1B5C #8A811B #1B8A49

square

#1B248A #8A1B5C #8A811B #1B8A49

split-complementary

#1B248A #8A491B #5C8A1B

monochromatic

#070924 #111757 #1B248A #2531BD #4551DB

Accessibility & contrast

On white

12.61

#1B248A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1B248A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B248A

12.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B248A	#FFFFFF	#000000	##FFFFFF
##1B248A	1.00	12.61	1.67	12.61
#FFFFFF	12.61	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00398D

Deuteranopia (green-blind)

#002E88

Tritanopia (blue-blind)

#004154

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1b248a;
/* rgb */ color: rgb(27, 36, 138);
/* oklch */ color: oklch(33.6% 0.165 269.9);

Tailwind

colors: {
  custom: {
    50: '#6c5fad',
    500: '#1b248a',
    950: '#000000',
  },
}

SCSS

$custom: #1b248a;
$custom-light: #6c5fad;
$custom-dark: #000000;

JSON

{
  "hex": "#1b248a",
  "rgb": {
    "r": 27,
    "g": 36,
    "b": 138
  },
  "hsl": {
    "h": 235.135,
    "s": 67.273,
    "l": 32.353
  },
  "oklch": {
    "l": 0.33598,
    "c": 0.16542,
    "h": 269.9
  },
  "luminance": 0.0333
}

Semantic roles & 50–950 ramp

primary

#1B248A

secondary

#BCB245

accent

#DC3EEA

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1B248A

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

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