#1D3E5F#1D3E5F

#1D3E5F is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.6% C 0.070 H 250.4°. Best body text is #FFFFFF at 11.01:1 contrast (WCAG AA passes).

Color values

HEX	#1D3E5F
RGB	rgb(29, 62, 95)
HSL	hsl(210, 53%, 24%)
HSV	hsv(210, 69%, 37%)
CMYK	cmyk(69.5%, 34.7%, 0%, 62.7%)
CIE-LAB	lab(25.36, -0.19, -23.16)
CIE-LCH	lch(25.36, 23.16, 269.53°)
OKLab	oklab(35.6% -0.0233 -0.0655)
OKLCH	oklch(35.6% 0.07 250.4)
XYZ	xyz(4.2941, 4.5323, 11.4728)
Luminance	0.0453 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3E5F #5F3E1D

analogous

#1D5F5F #1D3E5F #1D1D5F

triadic

#1D3E5F #5F1D3E #3E5F1D

tetradic

#1D3E5F #5F1D5F #5F3E1D #1D5F1D

square

#1D3E5F #5F1D5F #5F3E1D #1D5F1D

split-complementary

#1D3E5F #5F1D1D #5F5F1D

monochromatic

#070F17 #0F1F30 #1D3E5F #2B5D8E #3A7BBD

Accessibility & contrast

On white

11.01

#1D3E5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1D3E5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3E5F

11.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3E5F	#FFFFFF	#000000	##FFFFFF
##1D3E5F	1.00	11.01	1.91	11.01
#FFFFFF	11.01	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#304060

Deuteranopia (green-blind)

#27395E

Tritanopia (blue-blind)

#00464A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1d3e5f;
/* rgb */ color: rgb(29, 62, 95);
/* oklch */ color: oklch(35.6% 0.070 250.4);

Tailwind

colors: {
  custom: {
    50: '#61738c',
    500: '#1d3e5f',
    950: '#000000',
  },
}

SCSS

$custom: #1d3e5f;
$custom-light: #61738c;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3e5f",
  "rgb": {
    "r": 29,
    "g": 62,
    "b": 95
  },
  "hsl": {
    "h": 210,
    "s": 53.226,
    "l": 24.314
  },
  "oklch": {
    "l": 0.35598,
    "c": 0.06955,
    "h": 250.4
  },
  "luminance": 0.04533
}

Semantic roles & 50–950 ramp

primary

#1D3E5F

secondary

#946C44

accent

#944BDD

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#05080C

muted

#7A7B7D

Preview Lab

Preview with #1D3E5F

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

Preview Lab → · Contrast checker → · Palette generator →