#1B2869#1B2869

#1B2869 is a dark, moderate blue. Relative luminance 0.028; OKLCH L 31.0% C 0.114 H 269.8°. Best body text is #FFFFFF at 13.51:1 contrast (WCAG AA passes).

Color values

HEX	#1B2869
RGB	rgb(27, 40, 105)
HSL	hsl(230, 59%, 26%)
HSV	hsv(230, 74%, 41%)
CMYK	cmyk(74.3%, 61.9%, 0%, 58.8%)
CIE-LAB	lab(19.10, 19.08, -39.70)
CIE-LCH	lch(19.10, 44.05, 295.66°)
OKLab	oklab(30.99% -0.0004 -0.1145)
OKLCH	oklch(30.99% 0.114 269.8)
XYZ	xyz(3.7597, 2.7701, 13.6984)
Luminance	0.0277 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2869 #695C1B

analogous

#1B4F69 #1B2869 #351B69

triadic

#1B2869 #691B28 #28691B

tetradic

#1B2869 #691B4F #695C1B #1B6935

square

#1B2869 #691B4F #695C1B #1B6935

split-complementary

#1B2869 #69351B #4F691B

monochromatic

#060918 #0E1538 #1B2869 #283B9A #344DCA

Accessibility & contrast

On white

13.51

#1B2869 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#1B2869 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2869

13.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2869	#FFFFFF	#000000	##FFFFFF
##1B2869	1.00	13.51	1.55	13.51
#FFFFFF	13.51	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00326B

Deuteranopia (green-blind)

#002B68

Tritanopia (blue-blind)

#003844

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1b2869;
/* rgb */ color: rgb(27, 40, 105);
/* oklch */ color: oklch(31.0% 0.114 269.8);

Tailwind

colors: {
  custom: {
    50: '#636194',
    500: '#1b2869',
    950: '#000000',
  },
}

SCSS

$custom: #1b2869;
$custom-light: #636194;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2869",
  "rgb": {
    "r": 27,
    "g": 40,
    "b": 105
  },
  "hsl": {
    "h": 230,
    "s": 59.091,
    "l": 25.882
  },
  "oklch": {
    "l": 0.30992,
    "c": 0.11446,
    "h": 269.8
  },
  "luminance": 0.02771
}

Semantic roles & 50–950 ramp

primary

#1B2869

secondary

#9E8F42

accent

#C846E2

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06050D

muted

#7A797E

Preview Lab

Preview with #1B2869

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

Preview Lab → · Contrast checker → · Palette generator →