#1B2B6D#1B2B6D

#1B2B6D is a dark, moderate blue. Relative luminance 0.031; OKLCH L 32.0% C 0.116 H 268.6°. Best body text is #FFFFFF at 13.02:1 contrast (WCAG AA passes).

Color values

HEX	#1B2B6D
RGB	rgb(27, 43, 109)
HSL	hsl(228, 60%, 27%)
HSV	hsv(228, 75%, 43%)
CMYK	cmyk(75.2%, 60.6%, 0%, 57.3%)
CIE-LAB	lab(20.30, 18.53, -40.34)
CIE-LCH	lch(20.30, 44.40, 294.67°)
OKLab	oklab(32% -0.0029 -0.1163)
OKLCH	oklch(32% 0.116 268.6)
XYZ	xyz(4.0752, 3.0645, 14.8418)
Luminance	0.0307 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2B6D #6D5D1B

analogous

#1B546D #1B2B6D #341B6D

triadic

#1B2B6D #6D1B2B #2B6D1B

tetradic

#1B2B6D #6D1B54 #6D5D1B #1B6D34

square

#1B2B6D #6D1B54 #6D5D1B #1B6D34

split-complementary

#1B2B6D #6D341B #546D1B

monochromatic

#060A19 #0F183C #1B2B6D #273E9E #3553CD

Accessibility & contrast

On white

13.02

#1B2B6D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#1B2B6D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2B6D

13.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2B6D	#FFFFFF	#000000	##FFFFFF
##1B2B6D	1.00	13.02	1.61	13.02
#FFFFFF	13.02	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00356F

Deuteranopia (green-blind)

#002D6C

Tritanopia (blue-blind)

#003B47

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1b2b6d;
/* rgb */ color: rgb(27, 43, 109);
/* oklch */ color: oklch(32.0% 0.116 268.6);

Tailwind

colors: {
  custom: {
    50: '#646497',
    500: '#1b2b6d',
    950: '#000000',
  },
}

SCSS

$custom: #1b2b6d;
$custom-light: #646497;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2b6d",
  "rgb": {
    "r": 27,
    "g": 43,
    "b": 109
  },
  "hsl": {
    "h": 228.293,
    "s": 60.294,
    "l": 26.667
  },
  "oklch": {
    "l": 0.31997,
    "c": 0.11635,
    "h": 268.6
  },
  "luminance": 0.03065
}

Semantic roles & 50–950 ramp

primary

#1B2B6D

secondary

#A28F42

accent

#C444E3

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050D

muted

#7A797E

Preview Lab

Preview with #1B2B6D

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

Preview Lab → · Contrast checker → · Palette generator →