#1B2F6E#1B2F6E

#1B2F6E is a dark, moderate blue. Relative luminance 0.034; OKLCH L 33.0% C 0.112 H 266.8°. Best body text is #FFFFFF at 12.51:1 contrast (WCAG AA passes).

Color values

HEX	#1B2F6E
RGB	rgb(27, 47, 110)
HSL	hsl(226, 61%, 27%)
HSV	hsv(226, 75%, 43%)
CMYK	cmyk(75.5%, 57.3%, 0%, 56.9%)
CIE-LAB	lab(21.55, 16.07, -38.96)
CIE-LCH	lch(21.55, 42.15, 292.41°)
OKLab	oklab(32.96% -0.0063 -0.1122)
OKLCH	oklch(32.96% 0.112 266.8)
XYZ	xyz(4.2820, 3.3914, 15.1778)
Luminance	0.0339 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2F6E #6E5A1B

analogous

#1B596E #1B2F6E #311B6E

triadic

#1B2F6E #6E1B2F #2F6E1B

tetradic

#1B2F6E #6E1B59 #6E5A1B #1B6E31

square

#1B2F6E #6E1B59 #6E5A1B #1B6E31

split-complementary

#1B2F6E #6E311B #596E1B

monochromatic

#060A19 #0F1A3D #1B2F6E #27449F #365ACE

Accessibility & contrast

On white

12.51

#1B2F6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1B2F6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2F6E

12.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2F6E	#FFFFFF	#000000	##FFFFFF
##1B2F6E	1.00	12.51	1.68	12.51
#FFFFFF	12.51	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003870

Deuteranopia (green-blind)

#00306D

Tritanopia (blue-blind)

#003E49

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1b2f6e;
/* rgb */ color: rgb(27, 47, 110);
/* oklch */ color: oklch(33.0% 0.112 266.8);

Tailwind

colors: {
  custom: {
    50: '#646798',
    500: '#1b2f6e',
    950: '#000000',
  },
}

SCSS

$custom: #1b2f6e;
$custom-light: #646798;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2f6e",
  "rgb": {
    "r": 27,
    "g": 47,
    "b": 110
  },
  "hsl": {
    "h": 225.542,
    "s": 60.584,
    "l": 26.863
  },
  "oklch": {
    "l": 0.3296,
    "c": 0.11237,
    "h": 266.8
  },
  "luminance": 0.03392
}

Semantic roles & 50–950 ramp

primary

#1B2F6E

secondary

#A38C42

accent

#BD44E4

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #1B2F6E

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

Preview Lab → · Contrast checker → · Palette generator →