#1B5279#1B5279

#1B5279 is a dark, moderate cyan. Relative luminance 0.076; OKLCH L 42.2% C 0.086 H 243.7°. Best body text is #FFFFFF at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#1B5279
RGB	rgb(27, 82, 121)
HSL	hsl(205, 64%, 29%)
HSV	hsv(205, 78%, 47%)
CMYK	cmyk(77.7%, 32.2%, 0%, 52.5%)
CIE-LAB	lab(33.24, -3.46, -27.25)
CIE-LCH	lch(33.24, 27.47, 262.77°)
OKLab	oklab(42.24% -0.0382 -0.0772)
OKLCH	oklch(42.24% 0.086 243.7)
XYZ	xyz(6.9191, 7.6473, 19.1969)
Luminance	0.0765 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5279 #79421B

analogous

#1B7971 #1B5279 #1B2379

triadic

#1B5279 #791B52 #52791B

tetradic

#1B5279 #711B79 #79421B #23791B

square

#1B5279 #711B79 #79421B #23791B

split-complementary

#1B5279 #791B23 #79711B

monochromatic

#061119 #103047 #1B5279 #2674AB #3B94D3

Accessibility & contrast

On white

8.30

#1B5279 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#1B5279 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5279

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5279	#FFFFFF	#000000	##FFFFFF
##1B5279	1.00	8.30	2.53	8.30
#FFFFFF	8.30	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#40537B

Deuteranopia (green-blind)

#334A78

Tritanopia (blue-blind)

#005C60

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1b5279;
/* rgb */ color: rgb(27, 82, 121);
/* oklch */ color: oklch(42.2% 0.086 243.7);

Tailwind

colors: {
  custom: {
    50: '#6682a0',
    500: '#1b5279',
    950: '#000000',
  },
}

SCSS

$custom: #1b5279;
$custom-light: #6682a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5279",
  "rgb": {
    "r": 27,
    "g": 82,
    "b": 121
  },
  "hsl": {
    "h": 204.894,
    "s": 63.514,
    "l": 29.02
  },
  "oklch": {
    "l": 0.42244,
    "c": 0.08616,
    "h": 243.7
  },
  "luminance": 0.07648
}

Semantic roles & 50–950 ramp

primary

#1B5279

secondary

#AD6F43

accent

#8641E7

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0E

muted

#7A7C7E

Preview Lab

Preview with #1B5279

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

Preview Lab → · Contrast checker → · Palette generator →