#1A3F5F#1A3F5F

#1A3F5F is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 35.7% C 0.070 H 247.4°. Best body text is #FFFFFF at 10.94:1 contrast (WCAG AA passes).

Color values

HEX	#1A3F5F
RGB	rgb(26, 63, 95)
HSL	hsl(208, 57%, 24%)
HSV	hsv(208, 73%, 37%)
CMYK	cmyk(72.6%, 33.7%, 0%, 62.7%)
CIE-LAB	lab(25.56, -1.44, -22.84)
CIE-LCH	lch(25.56, 22.89, 266.40°)
OKLab	oklab(35.73% -0.0269 -0.0646)
OKLCH	oklch(35.73% 0.07 247.4)
XYZ	xyz(4.2683, 4.6004, 11.4873)
Luminance	0.0460 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3F5F #5F3A1A

analogous

#1A5F5C #1A3F5F #1A1C5F

triadic

#1A3F5F #5F1A3F #3F5F1A

tetradic

#1A3F5F #5C1A5F #5F3A1A #1C5F1A

square

#1A3F5F #5C1A5F #5F3A1A #1C5F1A

split-complementary

#1A3F5F #5F1A1C #5F5C1A

monochromatic

#071018 #0D1F2F #1A3F5F #275F8F #347FBF

Accessibility & contrast

On white

10.94

#1A3F5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#1A3F5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3F5F

10.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3F5F	#FFFFFF	#000000	##FFFFFF
##1A3F5F	1.00	10.94	1.92	10.94
#FFFFFF	10.94	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#314060

Deuteranopia (green-blind)

#273A5E

Tritanopia (blue-blind)

#00474A

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1a3f5f;
/* rgb */ color: rgb(26, 63, 95);
/* oklch */ color: oklch(35.7% 0.070 247.4);

Tailwind

colors: {
  custom: {
    50: '#60738c',
    500: '#1a3f5f',
    950: '#000000',
  },
}

SCSS

$custom: #1a3f5f;
$custom-light: #60738c;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3f5f",
  "rgb": {
    "r": 26,
    "g": 63,
    "b": 95
  },
  "hsl": {
    "h": 207.826,
    "s": 57.025,
    "l": 23.725
  },
  "oklch": {
    "l": 0.35725,
    "c": 0.07,
    "h": 247.4
  },
  "luminance": 0.04601
}

Semantic roles & 50–950 ramp

primary

#1A3F5F

secondary

#956740

accent

#8E48E0

background

#F5F7F8

surface

#EAEDF0

border

#C6C8CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #1A3F5F

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

Preview Lab → · Contrast checker → · Palette generator →