#1B435C#1B435C

#1B435C is a dark, moderate cyan. Relative luminance 0.050; OKLCH L 36.7% C 0.062 H 239.1°. Best body text is #FFFFFF at 10.48:1 contrast (WCAG AA passes).

Color values

HEX	#1B435C
RGB	rgb(27, 67, 92)
HSL	hsl(203, 55%, 23%)
HSV	hsv(203, 71%, 36%)
CMYK	cmyk(70.7%, 27.2%, 0%, 63.9%)
CIE-LAB	lab(26.79, -5.04, -18.98)
CIE-LCH	lch(26.79, 19.64, 255.12°)
OKLab	oklab(36.65% -0.0319 -0.0534)
OKLCH	oklch(36.65% 0.062 239.1)
XYZ	xyz(4.3902, 5.0196, 10.8606)
Luminance	0.0502 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B435C #5C341B

analogous

#1B5C54 #1B435C #1B225C

triadic

#1B435C #5C1B43 #435C1B

tetradic

#1B435C #541B5C #5C341B #225C1B

square

#1B435C #541B5C #5C341B #225C1B

split-complementary

#1B435C #5C1B22 #5C541B

monochromatic

#071118 #0D212D #1B435C #29658B #3788BB

Accessibility & contrast

On white

10.48

#1B435C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#1B435C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B435C

10.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B435C	#FFFFFF	#000000	##FFFFFF
##1B435C	1.00	10.48	2.00	10.48
#FFFFFF	10.48	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#37435D

Deuteranopia (green-blind)

#2F3C5C

Tritanopia (blue-blind)

#00494C

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1b435c;
/* rgb */ color: rgb(27, 67, 92);
/* oklch */ color: oklch(36.7% 0.062 239.1);

Tailwind

colors: {
  custom: {
    50: '#60778a',
    500: '#1b435c',
    950: '#000000',
  },
}

SCSS

$custom: #1b435c;
$custom-light: #60778a;
$custom-dark: #000000;

JSON

{
  "hex": "#1b435c",
  "rgb": {
    "r": 27,
    "g": 67,
    "b": 92
  },
  "hsl": {
    "h": 203.077,
    "s": 54.622,
    "l": 23.333
  },
  "oklch": {
    "l": 0.36653,
    "c": 0.06218,
    "h": 239.1
  },
  "luminance": 0.0502
}

Semantic roles & 50–950 ramp

primary

#1B435C

secondary

#926041

accent

#834ADE

background

#F5F7F8

surface

#EAEDF0

border

#C6C8CB

text

#05080B

muted

#797B7C

Preview Lab

Preview with #1B435C

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

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