#1B2F65#1B2F65

#1B2F65 is a dark, moderate blue. Relative luminance 0.032; OKLCH L 32.2% C 0.099 H 265.8°. Best body text is #FFFFFF at 12.80:1 contrast (WCAG AA passes).

Color values

HEX	#1B2F65
RGB	rgb(27, 47, 101)
HSL	hsl(224, 58%, 25%)
HSV	hsv(224, 73%, 40%)
CMYK	cmyk(73.3%, 53.5%, 0%, 60.4%)
CIE-LAB	lab(20.85, 12.39, -34.26)
CIE-LCH	lch(20.85, 36.43, 289.89°)
OKLab	oklab(32.21% -0.0072 -0.0983)
OKLCH	oklch(32.21% 0.099 265.8)
XYZ	xyz(3.8167, 3.2052, 12.7269)
Luminance	0.0321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2F65 #65511B

analogous

#1B5465 #1B2F65 #2C1B65

triadic

#1B2F65 #651B2F #2F651B

tetradic

#1B2F65 #651B54 #65511B #1B652C

square

#1B2F65 #651B54 #65511B #1B652C

split-complementary

#1B2F65 #652C1B #54651B

monochromatic

#060B18 #0E1935 #1B2F65 #284595 #355CC6

Accessibility & contrast

On white

12.80

#1B2F65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1B2F65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2F65

12.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2F65	#FFFFFF	#000000	##FFFFFF
##1B2F65	1.00	12.80	1.64	12.80
#FFFFFF	12.80	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F3667

Deuteranopia (green-blind)

#002F64

Tritanopia (blue-blind)

#003C45

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1b2f65;
/* rgb */ color: rgb(27, 47, 101);
/* oklch */ color: oklch(32.2% 0.099 265.8);

Tailwind

colors: {
  custom: {
    50: '#626791',
    500: '#1b2f65',
    950: '#000000',
  },
}

SCSS

$custom: #1b2f65;
$custom-light: #626791;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2f65",
  "rgb": {
    "r": 27,
    "g": 47,
    "b": 101
  },
  "hsl": {
    "h": 223.784,
    "s": 57.813,
    "l": 25.098
  },
  "oklch": {
    "l": 0.32207,
    "c": 0.09861,
    "h": 265.8
  },
  "luminance": 0.03206
}

Semantic roles & 50–950 ramp

primary

#1B2F65

secondary

#9A8241

accent

#B747E1

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #1B2F65

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

Preview Lab → · Contrast checker → · Palette generator →