#1C355F#1C355F

#1C355F is a dark, moderate blue. Relative luminance 0.036; OKLCH L 33.3% C 0.081 H 260.2°. Best body text is #FFFFFF at 12.18:1 contrast (WCAG AA passes).

Color values

HEX	#1C355F
RGB	rgb(28, 53, 95)
HSL	hsl(218, 54%, 24%)
HSV	hsv(218, 71%, 37%)
CMYK	cmyk(70.5%, 44.2%, 0%, 62.7%)
CIE-LAB	lab(22.37, 5.84, -27.89)
CIE-LCH	lch(22.37, 28.50, 281.82°)
OKLab	oklab(33.25% -0.0138 -0.0795)
OKLCH	oklch(33.25% 0.081 260.2)
XYZ	xyz(3.8168, 3.6189, 11.3216)
Luminance	0.0362 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C355F #5F461C

analogous

#1C575F #1C355F #251C5F

triadic

#1C355F #5F1C35 #355F1C

tetradic

#1C355F #5F1C57 #5F461C #1C5F25

square

#1C355F #5F1C57 #5F461C #1C5F25

split-complementary

#1C355F #5F251C #575F1C

monochromatic

#070D18 #0E1B30 #1C355F #2A4F8E #386ABE

Accessibility & contrast

On white

12.18

#1C355F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#1C355F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C355F

12.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C355F	#FFFFFF	#000000	##FFFFFF
##1C355F	1.00	12.18	1.72	12.18
#FFFFFF	12.18	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#223961

Deuteranopia (green-blind)

#17335E

Tritanopia (blue-blind)

#003F45

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1c355f;
/* rgb */ color: rgb(28, 53, 95);
/* oklch */ color: oklch(33.3% 0.081 260.2);

Tailwind

colors: {
  custom: {
    50: '#606b8d',
    500: '#1c355f',
    950: '#000000',
  },
}

SCSS

$custom: #1c355f;
$custom-light: #606b8d;
$custom-dark: #000000;

JSON

{
  "hex": "#1c355f",
  "rgb": {
    "r": 28,
    "g": 53,
    "b": 95
  },
  "hsl": {
    "h": 217.612,
    "s": 54.472,
    "l": 24.118
  },
  "oklch": {
    "l": 0.33254,
    "c": 0.0807,
    "h": 260.2
  },
  "luminance": 0.03619
}

Semantic roles & 50–950 ramp

primary

#1C355F

secondary

#947642

accent

#A74ADE

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #1C355F

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

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