#1B227E#1B227E

#1B227E is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.0% C 0.152 H 270.9°. Best body text is #FFFFFF at 13.32:1 contrast (WCAG AA passes).

Color values

HEX	#1B227E
RGB	rgb(27, 34, 126)
HSL	hsl(236, 65%, 30%)
HSV	hsv(236, 79%, 49%)
CMYK	cmyk(78.6%, 73%, 0%, 50.6%)
CIE-LAB	lab(19.57, 31.36, -52.44)
CIE-LCH	lch(19.57, 61.10, 300.88°)
OKLab	oklab(31.96% 0.0024 -0.1518)
OKLCH	oklch(31.96% 0.152 270.9)
XYZ	xyz(4.7886, 2.8829, 20.0387)
Luminance	0.0288 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B227E #7E771B

analogous

#1B537E #1B227E #461B7E

triadic

#1B227E #7E1B22 #227E1B

tetradic

#1B227E #7E1B53 #7E771B #1B7E46

square

#1B227E #7E1B53 #7E771B #1B7E46

split-complementary

#1B227E #7E461B #537E1B

monochromatic

#050719 #10144C #1B227E #2630B0 #3E49D6

Accessibility & contrast

On white

13.32

#1B227E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1B227E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B227E

13.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B227E	#FFFFFF	#000000	##FFFFFF
##1B227E	1.00	13.32	1.58	13.32
#FFFFFF	13.32	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003481

Deuteranopia (green-blind)

#002B7C

Tritanopia (blue-blind)

#003C4D

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1b227e;
/* rgb */ color: rgb(27, 34, 126);
/* oklch */ color: oklch(32.0% 0.152 270.9);

Tailwind

colors: {
  custom: {
    50: '#695da4',
    500: '#1b227e',
    950: '#000000',
  },
}

SCSS

$custom: #1b227e;
$custom-light: #695da4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b227e",
  "rgb": {
    "r": 27,
    "g": 34,
    "b": 126
  },
  "hsl": {
    "h": 235.758,
    "s": 64.706,
    "l": 30
  },
  "oklch": {
    "l": 0.31958,
    "c": 0.15181,
    "h": 270.9
  },
  "luminance": 0.02883
}

Semantic roles & 50–950 ramp

primary

#1B227E

secondary

#B2AA43

accent

#DC40E8

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1B227E

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

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