#1B2BA1#1B2BA1

#1B2BA1 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 37.2% C 0.187 H 268.2°. Best body text is #FFFFFF at 11.01:1 contrast (WCAG AA passes).

Color values

HEX	#1B2BA1
RGB	rgb(27, 43, 161)
HSL	hsl(233, 71%, 37%)
HSV	hsv(233, 83%, 63%)
CMYK	cmyk(83.2%, 73.3%, 0%, 36.9%)
CIE-LAB	lab(25.36, 38.51, -64.61)
CIE-LCH	lch(25.36, 75.22, 300.79°)
OKLab	oklab(37.24% -0.0059 -0.1872)
OKLCH	oklch(37.24% 0.187 268.2)
XYZ	xyz(7.7467, 4.5330, 34.1780)
Luminance	0.0453 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2BA1 #A1911B

analogous

#1B6EA1 #1B2BA1 #4E1BA1

triadic

#1B2BA1 #A11B2B #2BA11B

tetradic

#1B2BA1 #A11B6E #A1911B #1BA14E

square

#1B2BA1 #A11B6E #A1911B #1BA14E

split-complementary

#1B2BA1 #A14E1B #6EA11B

monochromatic

#090F38 #121D6D #1B2BA1 #2439D5 #5465E2

Accessibility & contrast

On white

11.01

#1B2BA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1B2BA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2BA1

11.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2BA1	#FFFFFF	#000000	##FFFFFF
##1B2BA1	1.00	11.01	1.91	11.01
#FFFFFF	11.01	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043A4

Deuteranopia (green-blind)

#00359F

Tritanopia (blue-blind)

#004D63

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1b2ba1;
/* rgb */ color: rgb(27, 43, 161);
/* oklch */ color: oklch(37.2% 0.187 268.2);

Tailwind

colors: {
  custom: {
    50: '#7265be',
    500: '#1b2ba1',
    950: '#000000',
  },
}

SCSS

$custom: #1b2ba1;
$custom-light: #7265be;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2ba1",
  "rgb": {
    "r": 27,
    "g": 43,
    "b": 161
  },
  "hsl": {
    "h": 232.836,
    "s": 71.277,
    "l": 36.863
  },
  "oklch": {
    "l": 0.37237,
    "c": 0.18734,
    "h": 268.2
  },
  "luminance": 0.04534
}

Semantic roles & 50–950 ramp

primary

#1B2BA1

secondary

#C5B852

accent

#D93AEE

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#090512

muted

#7B7A81

Preview Lab

Preview with #1B2BA1

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

Preview Lab → · Contrast checker → · Palette generator →