#1B5979#1B5979

#1B5979 is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 44.0% C 0.081 H 235.7°. Best body text is #FFFFFF at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#1B5979
RGB	rgb(27, 89, 121)
HSL	hsl(200, 64%, 29%)
HSV	hsv(200, 78%, 47%)
CMYK	cmyk(77.7%, 26.4%, 0%, 52.5%)
CIE-LAB	lab(35.51, -7.83, -23.69)
CIE-LCH	lch(35.51, 24.95, 251.72°)
OKLab	oklab(44.05% -0.0455 -0.0668)
OKLCH	oklch(44.05% 0.081 235.7)
XYZ	xyz(7.4742, 8.7574, 19.3819)
Luminance	0.0876 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5979 #793B1B

analogous

#1B796A #1B5979 #1B2A79

triadic

#1B5979 #791B59 #59791B

tetradic

#1B5979 #6A1B79 #793B1B #2A791B

square

#1B5979 #6A1B79 #793B1B #2A791B

split-complementary

#1B5979 #791B2A #796A1B

monochromatic

#061219 #103447 #1B5979 #267EAB #3B9FD3

Accessibility & contrast

On white

7.63

#1B5979 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#1B5979 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5979

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5979	#FFFFFF	#000000	##FFFFFF
##1B5979	1.00	7.63	2.75	7.63
#FFFFFF	7.63	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A597A

Deuteranopia (green-blind)

#3D5078

Tritanopia (blue-blind)

#006164

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1b5979;
/* rgb */ color: rgb(27, 89, 121);
/* oklch */ color: oklch(44.0% 0.081 235.7);

Tailwind

colors: {
  custom: {
    50: '#6687a0',
    500: '#1b5979',
    950: '#000000',
  },
}

SCSS

$custom: #1b5979;
$custom-light: #6687a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5979",
  "rgb": {
    "r": 27,
    "g": 89,
    "b": 121
  },
  "hsl": {
    "h": 200.426,
    "s": 63.514,
    "l": 29.02
  },
  "oklch": {
    "l": 0.44049,
    "c": 0.08082,
    "h": 235.7
  },
  "luminance": 0.08758
}

Semantic roles & 50–950 ramp

primary

#1B5979

secondary

#AD6743

accent

#7A41E7

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#070B0E

muted

#7A7C7E

Preview Lab

Preview with #1B5979

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

Preview Lab → · Contrast checker → · Palette generator →