#1B229E#1B229E

#1B229E is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.6% C 0.192 H 269.2°. Best body text is #FFFFFF at 11.87:1 contrast (WCAG AA passes).

Color values

HEX	#1B229E
RGB	rgb(27, 34, 158)
HSL	hsl(237, 71%, 36%)
HSV	hsv(237, 83%, 62%)
CMYK	cmyk(82.9%, 78.5%, 0%, 38%)
CIE-LAB	lab(23.15, 42.74, -66.44)
CIE-LCH	lch(23.15, 79.00, 302.75°)
OKLab	oklab(35.57% -0.0026 -0.1925)
OKLCH	oklch(35.57% 0.192 269.2)
XYZ	xyz(7.1935, 3.8448, 32.7041)
Luminance	0.0385 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B229E #9E971B

analogous

#1B649E #1B229E #561B9E

triadic

#1B229E #9E1B22 #229E1B

tetradic

#1B229E #9E1B64 #9E971B #1B9E56

square

#1B229E #9E1B64 #9E971B #1B9E56

split-complementary

#1B229E #9E561B #649E1B

monochromatic

#090C35 #12176A #1B229E #242DD2 #525AE1

Accessibility & contrast

On white

11.87

#1B229E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#1B229E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B229E

11.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B229E	#FFFFFF	#000000	##FFFFFF
##1B229E	1.00	11.87	1.77	11.87
#FFFFFF	11.87	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003EA2

Deuteranopia (green-blind)

#00309C

Tritanopia (blue-blind)

#00485F

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1b229e;
/* rgb */ color: rgb(27, 34, 158);
/* oklch */ color: oklch(35.6% 0.192 269.2);

Tailwind

colors: {
  custom: {
    50: '#725fbc',
    500: '#1b229e',
    950: '#000000',
  },
}

SCSS

$custom: #1b229e;
$custom-light: #725fbc;
$custom-dark: #000000;

JSON

{
  "hex": "#1b229e",
  "rgb": {
    "r": 27,
    "g": 34,
    "b": 158
  },
  "hsl": {
    "h": 236.794,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.35567,
    "c": 0.19249,
    "h": 269.2
  },
  "luminance": 0.03846
}

Semantic roles & 50–950 ramp

primary

#1B229E

secondary

#C4BE51

accent

#E43AEE

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #1B229E

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

Preview Lab → · Contrast checker → · Palette generator →