#1C3D5E#1C3D5E

#1C3D5E is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.2% C 0.070 H 250.4°. Best body text is #FFFFFF at 11.18:1 contrast (WCAG AA passes).

Color values

HEX	#1C3D5E
RGB	rgb(28, 61, 94)
HSL	hsl(210, 54%, 24%)
HSV	hsv(210, 70%, 37%)
CMYK	cmyk(70.2%, 35.1%, 0%, 63.1%)
CIE-LAB	lab(24.93, -0.10, -23.19)
CIE-LCH	lch(24.93, 23.19, 269.75°)
OKLab	oklab(35.23% -0.0233 -0.0656)
OKLCH	oklch(35.23% 0.07 250.4)
XYZ	xyz(4.1673, 4.3921, 11.2156)
Luminance	0.0439 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3D5E #5E3D1C

analogous

#1C5E5E #1C3D5E #1C1C5E

triadic

#1C3D5E #5E1C3D #3D5E1C

tetradic

#1C3D5E #5E1C5E #5E3D1C #1C5E1C

square

#1C3D5E #5E1C5E #5E3D1C #1C5E1C

split-complementary

#1C3D5E #5E1C1C #5E5E1C

monochromatic

#070F18 #0E1E2F #1C3D5E #2A5C8D #387ABC

Accessibility & contrast

On white

11.18

#1C3D5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#1C3D5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3D5E

11.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3D5E	#FFFFFF	#000000	##FFFFFF
##1C3D5E	1.00	11.18	1.88	11.18
#FFFFFF	11.18	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3F5F

Deuteranopia (green-blind)

#25385D

Tritanopia (blue-blind)

#004549

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1c3d5e;
/* rgb */ color: rgb(28, 61, 94);
/* oklch */ color: oklch(35.2% 0.070 250.4);

Tailwind

colors: {
  custom: {
    50: '#60728c',
    500: '#1c3d5e',
    950: '#000000',
  },
}

SCSS

$custom: #1c3d5e;
$custom-light: #60728c;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3d5e",
  "rgb": {
    "r": 28,
    "g": 61,
    "b": 94
  },
  "hsl": {
    "h": 210,
    "s": 54.098,
    "l": 23.922
  },
  "oklch": {
    "l": 0.35229,
    "c": 0.06965,
    "h": 250.4
  },
  "luminance": 0.04393
}

Semantic roles & 50–950 ramp

primary

#1C3D5E

secondary

#936B42

accent

#944ADD

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #1C3D5E

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

Preview Lab → · Contrast checker → · Palette generator →