#1C578E#1C578E

#1C578E is a dark, moderate cyan. Relative luminance 0.090; OKLCH L 44.8% C 0.108 H 250.4°. Best body text is #FFFFFF at 7.49:1 contrast (WCAG AA passes).

Color values

HEX	#1C578E
RGB	rgb(28, 87, 142)
HSL	hsl(209, 67%, 33%)
HSV	hsv(209, 80%, 56%)
CMYK	cmyk(80.3%, 38.7%, 0%, 44.3%)
CIE-LAB	lab(36.01, 1.72, -35.76)
CIE-LCH	lch(36.01, 35.80, 272.76°)
OKLab	oklab(44.82% -0.0363 -0.102)
OKLCH	oklch(44.82% 0.108 250.4)
XYZ	xyz(8.7677, 9.0152, 26.8640)
Luminance	0.0902 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C578E #8E531C

analogous

#1C8E8C #1C578E #1C1E8E

triadic

#1C578E #8E1C57 #578E1C

tetradic

#1C578E #8C1C8E #8E531C #1E8E1C

square

#1C578E #8C1C8E #8E531C #1E8E1C

split-complementary

#1C578E #8E1C1E #8E8C1C

monochromatic

#081828 #12385B #1C578E #2676C1 #4995DB

Accessibility & contrast

On white

7.49

#1C578E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#1C578E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C578E

7.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C578E	#FFFFFF	#000000	##FFFFFF
##1C578E	1.00	7.49	2.80	7.49
#FFFFFF	7.49	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D5A90

Deuteranopia (green-blind)

#2B508D

Tritanopia (blue-blind)

#00646B

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1c578e;
/* rgb */ color: rgb(28, 87, 142);
/* oklch */ color: oklch(44.8% 0.108 250.4);

Tailwind

colors: {
  custom: {
    50: '#6b86af',
    500: '#1c578e',
    950: '#000000',
  },
}

SCSS

$custom: #1c578e;
$custom-light: #6b86af;
$custom-dark: #000000;

JSON

{
  "hex": "#1c578e",
  "rgb": {
    "r": 28,
    "g": 87,
    "b": 142
  },
  "hsl": {
    "h": 208.947,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.44816,
    "c": 0.10825,
    "h": 250.4
  },
  "luminance": 0.09016
}

Semantic roles & 50–950 ramp

primary

#1C578E

secondary

#BD8149

accent

#913EEA

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1C578E

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

Preview Lab → · Contrast checker → · Palette generator →