#1D435B#1D435B

#1D435B is a dark, muted cyan. Relative luminance 0.050; OKLCH L 36.7% C 0.060 H 239.0°. Best body text is #FFFFFF at 10.47:1 contrast (WCAG AA passes).

Color values

HEX	#1D435B
RGB	rgb(29, 67, 91)
HSL	hsl(203, 52%, 24%)
HSV	hsv(203, 68%, 36%)
CMYK	cmyk(68.1%, 26.4%, 0%, 64.3%)
CIE-LAB	lab(26.82, -5.02, -18.28)
CIE-LCH	lch(26.82, 18.95, 254.63°)
OKLab	oklab(36.68% -0.0308 -0.0513)
OKLCH	oklch(36.68% 0.06 239)
XYZ	xyz(4.4015, 5.0304, 10.6345)
Luminance	0.0503 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D435B #5B351D

analogous

#1D5B54 #1D435B #1D245B

triadic

#1D435B #5B1D43 #435B1D

tetradic

#1D435B #541D5B #5B351D #245B1D

square

#1D435B #541D5B #5B351D #245B1D

split-complementary

#1D435B #5B1D24 #5B541D

monochromatic

#071117 #0E212D #1D435B #2C6589 #3B87B8

Accessibility & contrast

On white

10.47

#1D435B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#1D435B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D435B

10.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D435B	#FFFFFF	#000000	##FFFFFF
##1D435B	1.00	10.47	2.01	10.47
#FFFFFF	10.47	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#38435C

Deuteranopia (green-blind)

#2F3D5B

Tritanopia (blue-blind)

#00494B

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1d435b;
/* rgb */ color: rgb(29, 67, 91);
/* oklch */ color: oklch(36.7% 0.060 239.0);

Tailwind

colors: {
  custom: {
    50: '#607789',
    500: '#1d435b',
    950: '#000000',
  },
}

SCSS

$custom: #1d435b;
$custom-light: #607789;
$custom-dark: #000000;

JSON

{
  "hex": "#1d435b",
  "rgb": {
    "r": 29,
    "g": 67,
    "b": 91
  },
  "hsl": {
    "h": 203.226,
    "s": 51.667,
    "l": 23.529
  },
  "oklch": {
    "l": 0.36683,
    "c": 0.05985,
    "h": 239
  },
  "luminance": 0.05031
}

Semantic roles & 50–950 ramp

primary

#1D435B

secondary

#906144

accent

#844DDB

background

#F5F7F8

surface

#EAEDF0

border

#C6C8CB

text

#05080B

muted

#797B7C

Preview Lab

Preview with #1D435B

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

Preview Lab → · Contrast checker → · Palette generator →