#1B435E#1B435E

#1B435E is a dark, moderate cyan. Relative luminance 0.051; OKLCH L 36.8% C 0.065 H 241.2°. Best body text is #FFFFFF at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#1B435E
RGB	rgb(27, 67, 94)
HSL	hsl(204, 55%, 24%)
HSV	hsv(204, 71%, 37%)
CMYK	cmyk(71.3%, 28.7%, 0%, 63.1%)
CIE-LAB	lab(26.89, -4.28, -20.11)
CIE-LCH	lch(26.89, 20.56, 257.99°)
OKLab	oklab(36.77% -0.0312 -0.0566)
OKLCH	oklch(36.77% 0.065 241.2)
XYZ	xyz(4.4788, 5.0550, 11.3272)
Luminance	0.0505 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B435E #5E361B

analogous

#1B5E57 #1B435E #1B215E

triadic

#1B435E #5E1B43 #435E1B

tetradic

#1B435E #571B5E #5E361B #215E1B

square

#1B435E #571B5E #5E361B #215E1B

split-complementary

#1B435E #5E1B21 #5E571B

monochromatic

#071118 #0D212E #1B435E #29658E #3687BD

Accessibility & contrast

On white

10.44

#1B435E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#1B435E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B435E

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B435E	#FFFFFF	#000000	##FFFFFF
##1B435E	1.00	10.44	2.01	10.44
#FFFFFF	10.44	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#37435F

Deuteranopia (green-blind)

#2E3D5E

Tritanopia (blue-blind)

#004A4C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1b435e;
/* rgb */ color: rgb(27, 67, 94);
/* oklch */ color: oklch(36.8% 0.065 241.2);

Tailwind

colors: {
  custom: {
    50: '#60778b',
    500: '#1b435e',
    950: '#000000',
  },
}

SCSS

$custom: #1b435e;
$custom-light: #60778b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b435e",
  "rgb": {
    "r": 27,
    "g": 67,
    "b": 94
  },
  "hsl": {
    "h": 204.179,
    "s": 55.372,
    "l": 23.725
  },
  "oklch": {
    "l": 0.36766,
    "c": 0.06466,
    "h": 241.2
  },
  "luminance": 0.05055
}

Semantic roles & 50–950 ramp

primary

#1B435E

secondary

#946241

accent

#8549DF

background

#F5F7F8

surface

#EAEDF0

border

#C6C8CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #1B435E

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

Preview Lab → · Contrast checker → · Palette generator →