#1A3F4E#1A3F4E

#1A3F4E is a dark, muted cyan. Relative luminance 0.043; OKLCH L 34.8% C 0.049 H 227.4°. Best body text is #FFFFFF at 11.26:1 contrast (WCAG AA passes).

Color values

HEX	#1A3F4E
RGB	rgb(26, 63, 78)
HSL	hsl(197, 50%, 20%)
HSV	hsv(197, 67%, 31%)
CMYK	cmyk(66.7%, 19.2%, 0%, 69.4%)
CIE-LAB	lab(24.72, -7.92, -13.05)
CIE-LCH	lch(24.72, 15.27, 238.73°)
OKLab	oklab(34.77% -0.0335 -0.0364)
OKLCH	oklch(34.77% 0.049 227.4)
XYZ	xyz(3.5781, 4.3243, 7.8524)
Luminance	0.0432 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3F4E #4E291A

analogous

#1A4E43 #1A3F4E #1A254E

triadic

#1A3F4E #4E1A3F #3F4E1A

tetradic

#1A3F4E #431A4E #4E291A #254E1A

square

#1A3F4E #431A4E #4E291A #254E1A

split-complementary

#1A3F4E #4E1A25 #4E431A

monochromatic

#081317 #0B1A20 #1A3F4E #29647C #3989AA

Accessibility & contrast

On white

11.26

#1A3F4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#1A3F4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3F4E

11.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3F4E	#FFFFFF	#000000	##FFFFFF
##1A3F4E	1.00	11.26	1.87	11.26
#FFFFFF	11.26	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373E4F

Deuteranopia (green-blind)

#30384E

Tritanopia (blue-blind)

#004344

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1a3f4e;
/* rgb */ color: rgb(26, 63, 78);
/* oklch */ color: oklch(34.8% 0.049 227.4);

Tailwind

colors: {
  custom: {
    50: '#5d747f',
    500: '#1a3f4e',
    950: '#000000',
  },
}

SCSS

$custom: #1a3f4e;
$custom-light: #5d747f;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3f4e",
  "rgb": {
    "r": 26,
    "g": 63,
    "b": 78
  },
  "hsl": {
    "h": 197.308,
    "s": 50,
    "l": 20.392
  },
  "oklch": {
    "l": 0.34773,
    "c": 0.04946,
    "h": 227.4
  },
  "luminance": 0.04325
}

Semantic roles & 50–950 ramp

primary

#1A3F4E

secondary

#845340

accent

#764EDA

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #1A3F4E

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

Preview Lab → · Contrast checker → · Palette generator →