#1B2290#1B2290

#1B2290 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.0% C 0.175 H 269.9°. Best body text is #FFFFFF at 12.51:1 contrast (WCAG AA passes).

Color values

HEX	#1B2290
RGB	rgb(27, 34, 144)
HSL	hsl(236, 68%, 34%)
HSV	hsv(236, 81%, 56%)
CMYK	cmyk(81.3%, 76.4%, 0%, 43.5%)
CIE-LAB	lab(21.54, 37.89, -60.48)
CIE-LCH	lch(21.54, 71.36, 302.06°)
OKLab	oklab(33.96% -0.0003 -0.1752)
OKLCH	oklch(33.96% 0.175 269.9)
XYZ	xyz(6.0563, 3.3900, 26.7153)
Luminance	0.0339 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2290 #90891B

analogous

#1B5C90 #1B2290 #4E1B90

triadic

#1B2290 #901B22 #22901B

tetradic

#1B2290 #901B5C #90891B #1B904E

square

#1B2290 #901B5C #90891B #1B904E

split-complementary

#1B2290 #904E1B #5C901B

monochromatic

#080A29 #11165C #1B2290 #252EC4 #4951DD

Accessibility & contrast

On white

12.51

#1B2290 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1B2290 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2290

12.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2290	#FFFFFF	#000000	##FFFFFF
##1B2290	1.00	12.51	1.68	12.51
#FFFFFF	12.51	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003993

Deuteranopia (green-blind)

#002E8E

Tritanopia (blue-blind)

#004257

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1b2290;
/* rgb */ color: rgb(27, 34, 144);
/* oklch */ color: oklch(34.0% 0.175 269.9);

Tailwind

colors: {
  custom: {
    50: '#6e5eb2',
    500: '#1b2290',
    950: '#000000',
  },
}

SCSS

$custom: #1b2290;
$custom-light: #6e5eb2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2290",
  "rgb": {
    "r": 27,
    "g": 34,
    "b": 144
  },
  "hsl": {
    "h": 236.41,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.33957,
    "c": 0.17519,
    "h": 269.9
  },
  "luminance": 0.03391
}

Semantic roles & 50–950 ramp

primary

#1B2290

secondary

#BFB848

accent

#E13DEB

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1B2290

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

Preview Lab → · Contrast checker → · Palette generator →