#1B244F#1B244F

#1B244F is a dark, moderate blue. Relative luminance 0.021; OKLCH L 27.8% C 0.079 H 271.5°. Best body text is #FFFFFF at 14.87:1 contrast (WCAG AA passes).

Color values

HEX	#1B244F
RGB	rgb(27, 36, 79)
HSL	hsl(230, 49%, 21%)
HSV	hsv(230, 66%, 31%)
CMYK	cmyk(65.8%, 54.4%, 0%, 69%)
CIE-LAB	lab(15.79, 11.53, -27.75)
CIE-LCH	lch(15.79, 30.05, 292.56°)
OKLab	oklab(27.84% 0.002 -0.0794)
OKLCH	oklch(27.84% 0.079 271.5)
XYZ	xyz(2.4937, 2.0591, 7.6617)
Luminance	0.0206 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B244F #4F461B

analogous

#1B3E4F #1B244F #2C1B4F

triadic

#1B244F #4F1B24 #244F1B

tetradic

#1B244F #4F1B3E #4F461B #1B4F2C

square

#1B244F #4F1B3E #4F461B #1B4F2C

split-complementary

#1B244F #4F2C1B #3E4F1B

monochromatic

#080A17 #0B0F21 #1B244F #2B397D #3A4EAA

Accessibility & contrast

On white

14.87

#1B244F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#1B244F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B244F

14.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B244F	#FFFFFF	#000000	##FFFFFF
##1B244F	1.00	14.87	1.41	14.87
#FFFFFF	14.87	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E2A51

Deuteranopia (green-blind)

#05254E

Tritanopia (blue-blind)

#002E35

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #1b244f;
/* rgb */ color: rgb(27, 36, 79);
/* oklch */ color: oklch(27.8% 0.079 271.5);

Tailwind

colors: {
  custom: {
    50: '#5d5e81',
    500: '#1b244f',
    950: '#000000',
  },
}

SCSS

$custom: #1b244f;
$custom-light: #5d5e81;
$custom-dark: #000000;

JSON

{
  "hex": "#1b244f",
  "rgb": {
    "r": 27,
    "g": 36,
    "b": 79
  },
  "hsl": {
    "h": 229.615,
    "s": 49.057,
    "l": 20.784
  },
  "oklch": {
    "l": 0.27841,
    "c": 0.07941,
    "h": 271.5
  },
  "luminance": 0.02059
}

Semantic roles & 50–950 ramp

primary

#1B244F

secondary

#857941

accent

#C14FD9

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04040A

muted

#79797C

Preview Lab

Preview with #1B244F

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

Preview Lab → · Contrast checker → · Palette generator →