#1D375D#1D375D

#1D375D is a dark, moderate blue. Relative luminance 0.038; OKLCH L 33.7% C 0.075 H 257.9°. Best body text is #FFFFFF at 11.95:1 contrast (WCAG AA passes).

Color values

HEX	#1D375D
RGB	rgb(29, 55, 93)
HSL	hsl(216, 52%, 24%)
HSV	hsv(216, 69%, 36%)
CMYK	cmyk(68.8%, 40.9%, 0%, 63.5%)
CIE-LAB	lab(22.94, 3.83, -25.67)
CIE-LCH	lch(22.94, 25.95, 278.49°)
OKLab	oklab(33.67% -0.0157 -0.0729)
OKLCH	oklch(33.67% 0.075 257.9)
XYZ	xyz(3.8480, 3.7835, 10.8813)
Luminance	0.0378 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D375D #5D431D

analogous

#1D575D #1D375D #231D5D

triadic

#1D375D #5D1D37 #375D1D

tetradic

#1D375D #5D1D57 #5D431D #1D5D23

square

#1D375D #5D1D57 #5D431D #1D5D23

split-complementary

#1D375D #5D231D #575D1D

monochromatic

#070E17 #0E1B2E #1D375D #2C538C #3A6EBA

Accessibility & contrast

On white

11.95

#1D375D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#1D375D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D375D

11.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D375D	#FFFFFF	#000000	##FFFFFF
##1D375D	1.00	11.95	1.76	11.95
#FFFFFF	11.95	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#263A5F

Deuteranopia (green-blind)

#1D345C

Tritanopia (blue-blind)

#004045

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1d375d;
/* rgb */ color: rgb(29, 55, 93);
/* oklch */ color: oklch(33.7% 0.075 257.9);

Tailwind

colors: {
  custom: {
    50: '#606d8b',
    500: '#1d375d',
    950: '#000000',
  },
}

SCSS

$custom: #1d375d;
$custom-light: #606d8b;
$custom-dark: #000000;

JSON

{
  "hex": "#1d375d",
  "rgb": {
    "r": 29,
    "g": 55,
    "b": 93
  },
  "hsl": {
    "h": 215.625,
    "s": 52.459,
    "l": 23.922
  },
  "oklch": {
    "l": 0.33672,
    "c": 0.0746,
    "h": 257.9
  },
  "luminance": 0.03784
}

Semantic roles & 50–950 ramp

primary

#1D375D

secondary

#927244

accent

#A14CDC

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #1D375D

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

Preview Lab → · Contrast checker → · Palette generator →