#1B2F76#1B2F76

#1B2F76 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 33.7% C 0.124 H 267.3°. Best body text is #FFFFFF at 12.25:1 contrast (WCAG AA passes).

Color values

HEX	#1B2F76
RGB	rgb(27, 47, 118)
HSL	hsl(227, 63%, 28%)
HSV	hsv(227, 77%, 46%)
CMYK	cmyk(77.1%, 60.2%, 0%, 53.7%)
CIE-LAB	lab(22.21, 19.32, -43.02)
CIE-LCH	lch(22.21, 47.16, 294.18°)
OKLab	oklab(33.66% -0.0059 -0.1241)
OKLCH	oklch(33.66% 0.124 267.3)
XYZ	xyz(4.7374, 3.5735, 17.5761)
Luminance	0.0357 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2F76 #76621B

analogous

#1B5C76 #1B2F76 #341B76

triadic

#1B2F76 #761B2F #2F761B

tetradic

#1B2F76 #761B5C #76621B #1B7634

square

#1B2F76 #761B5C #76621B #1B7634

split-complementary

#1B2F76 #76341B #5C761B

monochromatic

#060A19 #101B44 #1B2F76 #2643A8 #3A5BD2

Accessibility & contrast

On white

12.25

#1B2F76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#1B2F76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2F76

12.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2F76	#FFFFFF	#000000	##FFFFFF
##1B2F76	1.00	12.25	1.71	12.25
#FFFFFF	12.25	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003978

Deuteranopia (green-blind)

#003175

Tritanopia (blue-blind)

#00414D

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1b2f76;
/* rgb */ color: rgb(27, 47, 118);
/* oklch */ color: oklch(33.7% 0.124 267.3);

Tailwind

colors: {
  custom: {
    50: '#66679e',
    500: '#1b2f76',
    950: '#000000',
  },
}

SCSS

$custom: #1b2f76;
$custom-light: #66679e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2f76",
  "rgb": {
    "r": 27,
    "g": 47,
    "b": 118
  },
  "hsl": {
    "h": 226.813,
    "s": 62.759,
    "l": 28.431
  },
  "oklch": {
    "l": 0.33664,
    "c": 0.12426,
    "h": 267.3
  },
  "luminance": 0.03574
}

Semantic roles & 50–950 ramp

primary

#1B2F76

secondary

#AA9442

accent

#C242E6

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #1B2F76

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

Preview Lab → · Contrast checker → · Palette generator →