#1D375E#1D375E

#1D375E is a dark, moderate blue. Relative luminance 0.038; OKLCH L 33.7% C 0.076 H 258.3°. Best body text is #FFFFFF at 11.93:1 contrast (WCAG AA passes).

Color values

HEX	#1D375E
RGB	rgb(29, 55, 94)
HSL	hsl(216, 53%, 24%)
HSV	hsv(216, 69%, 37%)
CMYK	cmyk(69.1%, 41.5%, 0%, 63.1%)
CIE-LAB	lab(23.00, 4.23, -26.23)
CIE-LCH	lch(23.00, 26.57, 279.15°)
OKLab	oklab(33.74% -0.0154 -0.0746)
OKLCH	oklch(33.74% 0.076 258.3)
XYZ	xyz(3.8925, 3.8014, 11.1161)
Luminance	0.0380 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D375E #5E441D

analogous

#1D585E #1D375E #241D5E

triadic

#1D375E #5E1D37 #375E1D

tetradic

#1D375E #5E1D58 #5E441D #1D5E24

square

#1D375E #5E1D58 #5E441D #1D5E24

split-complementary

#1D375E #5E241D #585E1D

monochromatic

#070E17 #0F1C2F #1D375E #2B528D #3A6EBC

Accessibility & contrast

On white

11.93

#1D375E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#1D375E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D375E

11.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D375E	#FFFFFF	#000000	##FFFFFF
##1D375E	1.00	11.93	1.76	11.93
#FFFFFF	11.93	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#263A60

Deuteranopia (green-blind)

#1C345D

Tritanopia (blue-blind)

#004046

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1d375e;
/* rgb */ color: rgb(29, 55, 94);
/* oklch */ color: oklch(33.7% 0.076 258.3);

Tailwind

colors: {
  custom: {
    50: '#616d8c',
    500: '#1d375e',
    950: '#000000',
  },
}

SCSS

$custom: #1d375e;
$custom-light: #616d8c;
$custom-dark: #000000;

JSON

{
  "hex": "#1d375e",
  "rgb": {
    "r": 29,
    "g": 55,
    "b": 94
  },
  "hsl": {
    "h": 216,
    "s": 52.846,
    "l": 24.118
  },
  "oklch": {
    "l": 0.33739,
    "c": 0.07616,
    "h": 258.3
  },
  "luminance": 0.03802
}

Semantic roles & 50–950 ramp

primary

#1D375E

secondary

#937344

accent

#A24CDC

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #1D375E

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

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