#1C558E#1C558E

#1C558E is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.3% C 0.110 H 251.8°. Best body text is #FFFFFF at 7.67:1 contrast (WCAG AA passes).

Color values

HEX	#1C558E
RGB	rgb(28, 85, 142)
HSL	hsl(210, 67%, 33%)
HSV	hsv(210, 80%, 56%)
CMYK	cmyk(80.3%, 40.1%, 0%, 44.3%)
CIE-LAB	lab(35.39, 3.02, -36.75)
CIE-LCH	lch(35.39, 36.87, 274.70°)
OKLab	oklab(44.33% -0.0344 -0.1049)
OKLCH	oklch(44.33% 0.11 251.8)
XYZ	xyz(8.6080, 8.6958, 26.8107)
Luminance	0.0870 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C558E #8E551C

analogous

#1C8E8E #1C558E #1C1C8E

triadic

#1C558E #8E1C55 #558E1C

tetradic

#1C558E #8E1C8E #8E551C #1C8E1C

square

#1C558E #8E1C8E #8E551C #1C8E1C

split-complementary

#1C558E #8E1C1C #8E8E1C

monochromatic

#081828 #12365B #1C558E #2674C1 #4992DB

Accessibility & contrast

On white

7.67

#1C558E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#1C558E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C558E

7.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C558E	#FFFFFF	#000000	##FFFFFF
##1C558E	1.00	7.67	2.74	7.67
#FFFFFF	7.67	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A5990

Deuteranopia (green-blind)

#284E8D

Tritanopia (blue-blind)

#00636A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1c558e;
/* rgb */ color: rgb(28, 85, 142);
/* oklch */ color: oklch(44.3% 0.110 251.8);

Tailwind

colors: {
  custom: {
    50: '#6b84af',
    500: '#1c558e',
    950: '#000000',
  },
}

SCSS

$custom: #1c558e;
$custom-light: #6b84af;
$custom-dark: #000000;

JSON

{
  "hex": "#1c558e",
  "rgb": {
    "r": 28,
    "g": 85,
    "b": 142
  },
  "hsl": {
    "h": 210,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.4433,
    "c": 0.11043,
    "h": 251.8
  },
  "luminance": 0.08697
}

Semantic roles & 50–950 ramp

primary

#1C558E

secondary

#BD8349

accent

#943EEA

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #1C558E

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

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