#1B5174#1B5174

#1B5174 is a dark, moderate cyan. Relative luminance 0.074; OKLCH L 41.7% C 0.081 H 241.2°. Best body text is #FFFFFF at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#1B5174
RGB	rgb(27, 81, 116)
HSL	hsl(204, 62%, 28%)
HSV	hsv(204, 77%, 45%)
CMYK	cmyk(76.7%, 30.2%, 0%, 54.5%)
CIE-LAB	lab(32.65, -4.76, -25.06)
CIE-LCH	lch(32.65, 25.51, 259.24°)
OKLab	oklab(41.7% -0.0389 -0.0708)
OKLCH	oklch(41.7% 0.081 241.2)
XYZ	xyz(6.5456, 7.3781, 17.5987)
Luminance	0.0738 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5174 #743E1B

analogous

#1B746B #1B5174 #1B2474

triadic

#1B5174 #741B51 #51741B

tetradic

#1B5174 #6B1B74 #743E1B #24741B

square

#1B5174 #6B1B74 #743E1B #24741B

split-complementary

#1B5174 #741B24 #746B1B

monochromatic

#061119 #0F2E42 #1B5174 #2774A6 #3995D1

Accessibility & contrast

On white

8.48

#1B5174 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#1B5174 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5174

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5174	#FFFFFF	#000000	##FFFFFF
##1B5174	1.00	8.48	2.48	8.48
#FFFFFF	8.48	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#415176

Deuteranopia (green-blind)

#354973

Tritanopia (blue-blind)

#005A5D

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1b5174;
/* rgb */ color: rgb(27, 81, 116);
/* oklch */ color: oklch(41.7% 0.081 241.2);

Tailwind

colors: {
  custom: {
    50: '#65819c',
    500: '#1b5174',
    950: '#000000',
  },
}

SCSS

$custom: #1b5174;
$custom-light: #65819c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5174",
  "rgb": {
    "r": 27,
    "g": 81,
    "b": 116
  },
  "hsl": {
    "h": 203.596,
    "s": 62.238,
    "l": 28.039
  },
  "oklch": {
    "l": 0.41697,
    "c": 0.08082,
    "h": 241.2
  },
  "luminance": 0.07379
}

Semantic roles & 50–950 ramp

primary

#1B5174

secondary

#A96A42

accent

#8342E5

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0E

muted

#7A7C7E

Preview Lab

Preview with #1B5174

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

Preview Lab → · Contrast checker → · Palette generator →