#1B425C#1B425C

#1B425C is a dark, moderate cyan. Relative luminance 0.049; OKLCH L 36.4% C 0.063 H 240.7°. Best body text is #FFFFFF at 10.60:1 contrast (WCAG AA passes).

Color values

HEX	#1B425C
RGB	rgb(27, 66, 92)
HSL	hsl(204, 55%, 23%)
HSV	hsv(204, 71%, 36%)
CMYK	cmyk(70.7%, 28.3%, 0%, 63.9%)
CIE-LAB	lab(26.45, -4.40, -19.50)
CIE-LCH	lch(26.45, 19.99, 257.30°)
OKLab	oklab(36.39% -0.0307 -0.0549)
OKLCH	oklch(36.39% 0.063 240.7)
XYZ	xyz(4.3312, 4.9017, 10.8410)
Luminance	0.0490 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B425C #5C351B

analogous

#1B5C55 #1B425C #1B215C

triadic

#1B425C #5C1B42 #425C1B

tetradic

#1B425C #551B5C #5C351B #215C1B

square

#1B425C #551B5C #5C351B #215C1B

split-complementary

#1B425C #5C1B21 #5C551B

monochromatic

#071118 #0D202D #1B425C #29648B #3786BB

Accessibility & contrast

On white

10.60

#1B425C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#1B425C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B425C

10.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B425C	#FFFFFF	#000000	##FFFFFF
##1B425C	1.00	10.60	1.98	10.60
#FFFFFF	10.60	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#36425D

Deuteranopia (green-blind)

#2D3C5C

Tritanopia (blue-blind)

#00484B

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1b425c;
/* rgb */ color: rgb(27, 66, 92);
/* oklch */ color: oklch(36.4% 0.063 240.7);

Tailwind

colors: {
  custom: {
    50: '#60768a',
    500: '#1b425c',
    950: '#000000',
  },
}

SCSS

$custom: #1b425c;
$custom-light: #60768a;
$custom-dark: #000000;

JSON

{
  "hex": "#1b425c",
  "rgb": {
    "r": 27,
    "g": 66,
    "b": 92
  },
  "hsl": {
    "h": 204,
    "s": 54.622,
    "l": 23.333
  },
  "oklch": {
    "l": 0.36385,
    "c": 0.06291,
    "h": 240.7
  },
  "luminance": 0.04902
}

Semantic roles & 50–950 ramp

primary

#1B425C

secondary

#926141

accent

#854ADE

background

#F5F7F8

surface

#EAEDF0

border

#C6C8CB

text

#05080B

muted

#797B7C

Preview Lab

Preview with #1B425C

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

Preview Lab → · Contrast checker → · Palette generator →