#1B2E72#1B2E72

#1B2E72 is a dark, moderate blue. Relative luminance 0.034; OKLCH L 33.1% C 0.120 H 267.5°. Best body text is #FFFFFF at 12.50:1 contrast (WCAG AA passes).

Color values

HEX	#1B2E72
RGB	rgb(27, 46, 114)
HSL	hsl(227, 62%, 28%)
HSV	hsv(227, 76%, 45%)
CMYK	cmyk(76.3%, 59.6%, 0%, 55.3%)
CIE-LAB	lab(21.58, 18.41, -41.48)
CIE-LCH	lch(21.58, 45.38, 293.94°)
OKLab	oklab(33.09% -0.0052 -0.1196)
OKLCH	oklch(33.09% 0.12 267.5)
XYZ	xyz(4.4652, 3.4014, 16.3375)
Luminance	0.0340 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2E72 #725F1B

analogous

#1B5972 #1B2E72 #341B72

triadic

#1B2E72 #721B2E #2E721B

tetradic

#1B2E72 #721B59 #725F1B #1B7234

square

#1B2E72 #721B59 #725F1B #1B7234

split-complementary

#1B2E72 #72341B #59721B

monochromatic

#060A19 #0F1A41 #1B2E72 #2742A3 #3859D0

Accessibility & contrast

On white

12.50

#1B2E72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1B2E72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2E72

12.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2E72	#FFFFFF	#000000	##FFFFFF
##1B2E72	1.00	12.50	1.68	12.50
#FFFFFF	12.50	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003874

Deuteranopia (green-blind)

#003071

Tritanopia (blue-blind)

#003F4B

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1b2e72;
/* rgb */ color: rgb(27, 46, 114);
/* oklch */ color: oklch(33.1% 0.120 267.5);

Tailwind

colors: {
  custom: {
    50: '#65669b',
    500: '#1b2e72',
    950: '#000000',
  },
}

SCSS

$custom: #1b2e72;
$custom-light: #65669b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2e72",
  "rgb": {
    "r": 27,
    "g": 46,
    "b": 114
  },
  "hsl": {
    "h": 226.897,
    "s": 61.702,
    "l": 27.647
  },
  "oklch": {
    "l": 0.33091,
    "c": 0.1197,
    "h": 267.5
  },
  "luminance": 0.03402
}

Semantic roles & 50–950 ramp

primary

#1B2E72

secondary

#A79142

accent

#C143E5

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06050E

muted

#7A7A7E

Preview Lab

Preview with #1B2E72

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

Preview Lab → · Contrast checker → · Palette generator →