#1578A1#1578A1

#1578A1 is a mid, moderate cyan. Relative luminance 0.162; OKLCH L 53.9% C 0.105 H 232.6°. Best body text is #FFFFFF at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#1578A1
RGB	rgb(21, 120, 161)
HSL	hsl(198, 77%, 36%)
HSV	hsv(198, 87%, 63%)
CMYK	cmyk(87%, 25.5%, 0%, 36.9%)
CIE-LAB	lab(47.19, -11.77, -29.51)
CIE-LCH	lch(47.19, 31.77, 248.25°)
OKLab	oklab(53.94% -0.0637 -0.0833)
OKLCH	oklch(53.94% 0.105 232.6)
XYZ	xyz(13.4561, 16.1638, 36.1220)
Luminance	0.1617 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1578A1 #A13E15

analogous

#15A184 #1578A1 #1532A1

triadic

#1578A1 #A11578 #78A115

tetradic

#1578A1 #8415A1 #A13E15 #32A115

square

#1578A1 #8415A1 #A13E15 #32A115

split-complementary

#1578A1 #A11532 #A18415

monochromatic

#072735 #0E506B #1578A1 #1CA0D7 #49B9E7

Accessibility & contrast

On white

4.96

#1578A1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#1578A1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1578A1

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1578A1	#FFFFFF	#000000	##FFFFFF
##1578A1	1.00	4.96	4.23	4.96
#FFFFFF	4.96	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6377A3

Deuteranopia (green-blind)

#516AA0

Tritanopia (blue-blind)

#008386

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #1578a1;
/* rgb */ color: rgb(21, 120, 161);
/* oklch */ color: oklch(53.9% 0.105 232.6);

Tailwind

colors: {
  custom: {
    50: '#6e9fbd',
    500: '#1578a1',
    950: '#000000',
  },
}

SCSS

$custom: #1578a1;
$custom-light: #6e9fbd;
$custom-dark: #000000;

JSON

{
  "hex": "#1578a1",
  "rgb": {
    "r": 21,
    "g": 120,
    "b": 161
  },
  "hsl": {
    "h": 197.571,
    "s": 76.923,
    "l": 35.686
  },
  "oklch": {
    "l": 0.53942,
    "c": 0.1049,
    "h": 232.6
  },
  "luminance": 0.16166
}

Semantic roles & 50–950 ramp

primary

#1578A1

secondary

#C86F49

accent

#6C34F3

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #1578A1

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

Preview Lab → · Contrast checker → · Palette generator →