#1B4576#1B4576

#1B4576 is a dark, moderate cyan. Relative luminance 0.058; OKLCH L 38.8% C 0.096 H 254.3°. Best body text is #FFFFFF at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#1B4576
RGB	rgb(27, 69, 118)
HSL	hsl(212, 63%, 28%)
HSV	hsv(212, 77%, 46%)
CMYK	cmyk(77.1%, 41.5%, 0%, 53.7%)
CIE-LAB	lab(28.89, 3.89, -32.25)
CIE-LCH	lch(28.89, 32.49, 276.88°)
OKLab	oklab(38.78% -0.0259 -0.0921)
OKLCH	oklch(38.78% 0.096 254.3)
XYZ	xyz(5.8489, 5.7966, 17.9466)
Luminance	0.0580 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4576 #764C1B

analogous

#1B7276 #1B4576 #1E1B76

triadic

#1B4576 #761B45 #45761B

tetradic

#1B4576 #761B72 #764C1B #1B761E

square

#1B4576 #761B72 #764C1B #1B761E

split-complementary

#1B4576 #761E1B #72761B

monochromatic

#060F19 #102844 #1B4576 #2662A8 #3A80D2

Accessibility & contrast

On white

9.72

#1B4576 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#1B4576 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4576

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4576	#FFFFFF	#000000	##FFFFFF
##1B4576	1.00	9.72	2.16	9.72
#FFFFFF	9.72	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E4978

Deuteranopia (green-blind)

#1F4075

Tritanopia (blue-blind)

#005157

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1b4576;
/* rgb */ color: rgb(27, 69, 118);
/* oklch */ color: oklch(38.8% 0.096 254.3);

Tailwind

colors: {
  custom: {
    50: '#65789e',
    500: '#1b4576',
    950: '#000000',
  },
}

SCSS

$custom: #1b4576;
$custom-light: #65789e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4576",
  "rgb": {
    "r": 27,
    "g": 69,
    "b": 118
  },
  "hsl": {
    "h": 212.308,
    "s": 62.759,
    "l": 28.431
  },
  "oklch": {
    "l": 0.38779,
    "c": 0.09562,
    "h": 254.3
  },
  "luminance": 0.05797
}

Semantic roles & 50–950 ramp

primary

#1B4576

secondary

#AA7A42

accent

#9A42E6

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #1B4576

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

Preview Lab → · Contrast checker → · Palette generator →