#1C375F#1C375F

#1C375F is a dark, moderate blue. Relative luminance 0.038; OKLCH L 33.8% C 0.078 H 258.1°. Best body text is #FFFFFF at 11.93:1 contrast (WCAG AA passes).

Color values

HEX	#1C375F
RGB	rgb(28, 55, 95)
HSL	hsl(216, 54%, 24%)
HSV	hsv(216, 71%, 37%)
CMYK	cmyk(70.5%, 42.1%, 0%, 62.7%)
CIE-LAB	lab(23.02, 4.43, -26.86)
CIE-LCH	lch(23.02, 27.23, 279.36°)
OKLab	oklab(33.76% -0.0161 -0.0765)
OKLCH	oklch(33.76% 0.078 258.1)
XYZ	xyz(3.9099, 3.8051, 11.3527)
Luminance	0.0381 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C375F #5F441C

analogous

#1C595F #1C375F #231C5F

triadic

#1C375F #5F1C37 #375F1C

tetradic

#1C375F #5F1C59 #5F441C #1C5F23

square

#1C375F #5F1C59 #5F441C #1C5F23

split-complementary

#1C375F #5F231C #595F1C

monochromatic

#070E18 #0E1C30 #1C375F #2A528E #386EBE

Accessibility & contrast

On white

11.93

#1C375F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#1C375F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C375F

11.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C375F	#FFFFFF	#000000	##FFFFFF
##1C375F	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)

#253A61

Deuteranopia (green-blind)

#1B345E

Tritanopia (blue-blind)

#004046

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1c375f;
/* rgb */ color: rgb(28, 55, 95);
/* oklch */ color: oklch(33.8% 0.078 258.1);

Tailwind

colors: {
  custom: {
    50: '#606d8c',
    500: '#1c375f',
    950: '#000000',
  },
}

SCSS

$custom: #1c375f;
$custom-light: #606d8c;
$custom-dark: #000000;

JSON

{
  "hex": "#1c375f",
  "rgb": {
    "r": 28,
    "g": 55,
    "b": 95
  },
  "hsl": {
    "h": 215.821,
    "s": 54.472,
    "l": 24.118
  },
  "oklch": {
    "l": 0.33756,
    "c": 0.07813,
    "h": 258.1
  },
  "luminance": 0.03805
}

Semantic roles & 50–950 ramp

primary

#1C375F

secondary

#947342

accent

#A24ADE

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #1C375F

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

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