#1B455E#1B455E

#1B455E is a dark, moderate cyan. Relative luminance 0.053; OKLCH L 37.3% C 0.063 H 238.0°. Best body text is #FFFFFF at 10.20:1 contrast (WCAG AA passes).

Color values

HEX	#1B455E
RGB	rgb(27, 69, 94)
HSL	hsl(202, 55%, 24%)
HSV	hsv(202, 71%, 37%)
CMYK	cmyk(71.3%, 26.6%, 0%, 63.1%)
CIE-LAB	lab(27.56, -5.57, -19.06)
CIE-LCH	lch(27.56, 19.86, 253.71°)
OKLab	oklab(37.3% -0.0335 -0.0536)
OKLCH	oklch(37.3% 0.063 238)
XYZ	xyz(4.5997, 5.2969, 11.3675)
Luminance	0.0530 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B455E #5E341B

analogous

#1B5E55 #1B455E #1B235E

triadic

#1B455E #5E1B45 #455E1B

tetradic

#1B455E #551B5E #5E341B #235E1B

square

#1B455E #551B5E #5E341B #235E1B

split-complementary

#1B455E #5E1B23 #5E551B

monochromatic

#071118 #0D222E #1B455E #29688E #368BBD

Accessibility & contrast

On white

10.20

#1B455E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#1B455E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B455E

10.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B455E	#FFFFFF	#000000	##FFFFFF
##1B455E	1.00	10.20	2.06	10.20
#FFFFFF	10.20	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#39455F

Deuteranopia (green-blind)

#303E5E

Tritanopia (blue-blind)

#004B4E

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1b455e;
/* rgb */ color: rgb(27, 69, 94);
/* oklch */ color: oklch(37.3% 0.063 238.0);

Tailwind

colors: {
  custom: {
    50: '#60788b',
    500: '#1b455e',
    950: '#000000',
  },
}

SCSS

$custom: #1b455e;
$custom-light: #60788b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b455e",
  "rgb": {
    "r": 27,
    "g": 69,
    "b": 94
  },
  "hsl": {
    "h": 202.388,
    "s": 55.372,
    "l": 23.725
  },
  "oklch": {
    "l": 0.37299,
    "c": 0.06322,
    "h": 238
  },
  "luminance": 0.05297
}

Semantic roles & 50–950 ramp

primary

#1B455E

secondary

#946041

accent

#8149DF

background

#F5F7F8

surface

#EAEDF0

border

#C6C8CB

text

#05090C

muted

#797B7D

Preview Lab

Preview with #1B455E

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

Preview Lab → · Contrast checker → · Palette generator →