#1D3D5F#1D3D5F

#1D3D5F is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.3% C 0.071 H 251.7°. Best body text is #FFFFFF at 11.14:1 contrast (WCAG AA passes).

Color values

HEX	#1D3D5F
RGB	rgb(29, 61, 95)
HSL	hsl(211, 53%, 24%)
HSV	hsv(211, 69%, 37%)
CMYK	cmyk(69.5%, 35.8%, 0%, 62.7%)
CIE-LAB	lab(25.03, 0.49, -23.68)
CIE-LCH	lch(25.03, 23.68, 271.18°)
OKLab	oklab(35.34% -0.0222 -0.067)
OKLCH	oklch(35.34% 0.071 251.7)
XYZ	xyz(4.2402, 4.4245, 11.4548)
Luminance	0.0442 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3D5F #5F3F1D

analogous

#1D5E5F #1D3D5F #1E1D5F

triadic

#1D3D5F #5F1D3D #3D5F1D

tetradic

#1D3D5F #5F1D5E #5F3F1D #1D5F1E

square

#1D3D5F #5F1D5E #5F3F1D #1D5F1E

split-complementary

#1D3D5F #5F1E1D #5E5F1D

monochromatic

#070F17 #0F1F30 #1D3D5F #2B5B8E #3A79BD

Accessibility & contrast

On white

11.14

#1D3D5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#1D3D5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3D5F

11.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3D5F	#FFFFFF	#000000	##FFFFFF
##1D3D5F	1.00	11.14	1.89	11.14
#FFFFFF	11.14	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3F60

Deuteranopia (green-blind)

#25395E

Tritanopia (blue-blind)

#004549

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1d3d5f;
/* rgb */ color: rgb(29, 61, 95);
/* oklch */ color: oklch(35.3% 0.071 251.7);

Tailwind

colors: {
  custom: {
    50: '#61728c',
    500: '#1d3d5f',
    950: '#000000',
  },
}

SCSS

$custom: #1d3d5f;
$custom-light: #61728c;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3d5f",
  "rgb": {
    "r": 29,
    "g": 61,
    "b": 95
  },
  "hsl": {
    "h": 210.909,
    "s": 53.226,
    "l": 24.314
  },
  "oklch": {
    "l": 0.35339,
    "c": 0.07061,
    "h": 251.7
  },
  "luminance": 0.04425
}

Semantic roles & 50–950 ramp

primary

#1D3D5F

secondary

#946D44

accent

#964BDD

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#05070C

muted

#7A7A7D

Preview Lab

Preview with #1D3D5F

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

Preview Lab → · Contrast checker → · Palette generator →