#1B5271#1B5271

#1B5271 is a dark, moderate cyan. Relative luminance 0.075; OKLCH L 41.8% C 0.077 H 237.6°. Best body text is #FFFFFF at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#1B5271
RGB	rgb(27, 82, 113)
HSL	hsl(202, 61%, 27%)
HSV	hsv(202, 76%, 44%)
CMYK	cmyk(76.1%, 27.4%, 0%, 55.7%)
CIE-LAB	lab(32.83, -6.54, -22.91)
CIE-LCH	lch(32.83, 23.83, 254.06°)
OKLab	oklab(41.79% -0.041 -0.0646)
OKLCH	oklch(41.79% 0.077 237.6)
XYZ	xyz(6.4488, 7.4591, 16.7195)
Luminance	0.0746 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5271 #713A1B

analogous

#1B7165 #1B5271 #1B2771

triadic

#1B5271 #711B52 #52711B

tetradic

#1B5271 #651B71 #713A1B #27711B

square

#1B5271 #651B71 #713A1B #27711B

split-complementary

#1B5271 #711B27 #71651B

monochromatic

#061219 #0F2E40 #1B5271 #2776A2 #3798CF

Accessibility & contrast

On white

8.43

#1B5271 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#1B5271 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5271

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5271	#FFFFFF	#000000	##FFFFFF
##1B5271	1.00	8.43	2.49	8.43
#FFFFFF	8.43	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#435272

Deuteranopia (green-blind)

#384A70

Tritanopia (blue-blind)

#005A5D

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1b5271;
/* rgb */ color: rgb(27, 82, 113);
/* oklch */ color: oklch(41.8% 0.077 237.6);

Tailwind

colors: {
  custom: {
    50: '#64829a',
    500: '#1b5271',
    950: '#000000',
  },
}

SCSS

$custom: #1b5271;
$custom-light: #64829a;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5271",
  "rgb": {
    "r": 27,
    "g": 82,
    "b": 113
  },
  "hsl": {
    "h": 201.628,
    "s": 61.429,
    "l": 27.451
  },
  "oklch": {
    "l": 0.41788,
    "c": 0.07652,
    "h": 237.6
  },
  "luminance": 0.0746
}

Semantic roles & 50–950 ramp

primary

#1B5271

secondary

#A66642

accent

#7D43E5

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0E

muted

#7A7C7E

Preview Lab

Preview with #1B5271

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

Preview Lab → · Contrast checker → · Palette generator →