#1D375A#1D375A

#1D375A is a dark, moderate cyan. Relative luminance 0.037; OKLCH L 33.5% C 0.070 H 256.4°. Best body text is #FFFFFF at 12.02:1 contrast (WCAG AA passes).

Color values

HEX	#1D375A
RGB	rgb(29, 55, 90)
HSL	hsl(214, 51%, 23%)
HSV	hsv(214, 68%, 35%)
CMYK	cmyk(67.8%, 38.9%, 0%, 64.7%)
CIE-LAB	lab(22.76, 2.65, -23.99)
CIE-LCH	lch(22.76, 24.13, 276.29°)
OKLab	oklab(33.47% -0.0165 -0.068)
OKLCH	oklch(33.47% 0.07 256.4)
XYZ	xyz(3.7177, 3.7314, 10.1952)
Luminance	0.0373 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D375A #5A401D

analogous

#1D555A #1D375A #211D5A

triadic

#1D375A #5A1D37 #375A1D

tetradic

#1D375A #5A1D55 #5A401D #1D5A21

square

#1D375A #5A1D55 #5A401D #1D5A21

split-complementary

#1D375A #5A211D #555A1D

monochromatic

#070E17 #0E1B2C #1D375A #2C5388 #3B70B7

Accessibility & contrast

On white

12.02

#1D375A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1D375A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D375A

12.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D375A	#FFFFFF	#000000	##FFFFFF
##1D375A	1.00	12.02	1.75	12.02
#FFFFFF	12.02	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28395B

Deuteranopia (green-blind)

#203459

Tritanopia (blue-blind)

#003F44

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1d375a;
/* rgb */ color: rgb(29, 55, 90);
/* oklch */ color: oklch(33.5% 0.070 256.4);

Tailwind

colors: {
  custom: {
    50: '#606d89',
    500: '#1d375a',
    950: '#000000',
  },
}

SCSS

$custom: #1d375a;
$custom-light: #606d89;
$custom-dark: #000000;

JSON

{
  "hex": "#1d375a",
  "rgb": {
    "r": 29,
    "g": 55,
    "b": 90
  },
  "hsl": {
    "h": 214.426,
    "s": 51.261,
    "l": 23.333
  },
  "oklch": {
    "l": 0.33474,
    "c": 0.07,
    "h": 256.4
  },
  "luminance": 0.03732
}

Semantic roles & 50–950 ramp

primary

#1D375A

secondary

#8F6F44

accent

#9E4DDB

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05070B

muted

#797A7C

Preview Lab

Preview with #1D375A

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

Preview Lab → · Contrast checker → · Palette generator →