#1C558F#1C558F

#1C558F is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.4% C 0.112 H 252.2°. Best body text is #FFFFFF at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#1C558F
RGB	rgb(28, 85, 143)
HSL	hsl(210, 67%, 34%)
HSV	hsv(210, 80%, 56%)
CMYK	cmyk(80.4%, 40.6%, 0%, 43.9%)
CIE-LAB	lab(35.45, 3.42, -37.26)
CIE-LCH	lch(35.45, 37.42, 275.24°)
OKLab	oklab(44.4% -0.0342 -0.1064)
OKLCH	oklch(44.4% 0.112 252.2)
XYZ	xyz(8.6834, 8.7260, 27.2079)
Luminance	0.0873 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C558F #8F561C

analogous

#1C8E8F #1C558F #1D1C8F

triadic

#1C558F #8F1C55 #558F1C

tetradic

#1C558F #8F1C8E #8F561C #1C8F1D

square

#1C558F #8F1C8E #8F561C #1C8F1D

split-complementary

#1C558F #8F1D1C #8E8F1C

monochromatic

#081829 #12375C #1C558F #2673C2 #4A92DC

Accessibility & contrast

On white

7.65

#1C558F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#1C558F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C558F

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C558F	#FFFFFF	#000000	##FFFFFF
##1C558F	1.00	7.65	2.75	7.65
#FFFFFF	7.65	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#395991

Deuteranopia (green-blind)

#264F8E

Tritanopia (blue-blind)

#00636B

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1c558f;
/* rgb */ color: rgb(28, 85, 143);
/* oklch */ color: oklch(44.4% 0.112 252.2);

Tailwind

colors: {
  custom: {
    50: '#6b84b0',
    500: '#1c558f',
    950: '#000000',
  },
}

SCSS

$custom: #1c558f;
$custom-light: #6b84b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c558f",
  "rgb": {
    "r": 28,
    "g": 85,
    "b": 143
  },
  "hsl": {
    "h": 210.261,
    "s": 67.251,
    "l": 33.529
  },
  "oklch": {
    "l": 0.44395,
    "c": 0.11179,
    "h": 252.2
  },
  "luminance": 0.08727
}

Semantic roles & 50–950 ramp

primary

#1C558F

secondary

#BE8449

accent

#953EEA

background

#F6F8FA

surface

#ECEFF5

border

#C7CACF

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #1C558F

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

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