#1F436E#1F436E

#1F436E is a dark, moderate cyan. Relative luminance 0.054; OKLCH L 37.9% C 0.085 H 254.3°. Best body text is #FFFFFF at 10.07:1 contrast (WCAG AA passes).

Color values

HEX	#1F436E
RGB	rgb(31, 67, 110)
HSL	hsl(213, 56%, 28%)
HSV	hsv(213, 72%, 43%)
CMYK	cmyk(71.8%, 39.1%, 0%, 56.9%)
CIE-LAB	lab(27.93, 2.70, -28.72)
CIE-LCH	lch(27.93, 28.85, 275.37°)
OKLab	oklab(37.91% -0.0229 -0.0817)
OKLCH	oklch(37.91% 0.085 254.3)
XYZ	xyz(5.3857, 5.4308, 15.5133)
Luminance	0.0543 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F436E #6E4A1F

analogous

#1F6A6E #1F436E #221F6E

triadic

#1F436E #6E1F43 #436E1F

tetradic

#1F436E #6E1F6A #6E4A1F #1F6E22

square

#1F436E #6E1F6A #6E4A1F #1F6E22

split-complementary

#1F436E #6E221F #6A6E1F

monochromatic

#070F18 #12263E #1F436E #2C609E #3F7EC9

Accessibility & contrast

On white

10.07

#1F436E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#1F436E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F436E

10.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F436E	#FFFFFF	#000000	##FFFFFF
##1F436E	1.00	10.07	2.09	10.07
#FFFFFF	10.07	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#304670

Deuteranopia (green-blind)

#243F6D

Tritanopia (blue-blind)

#004D53

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1f436e;
/* rgb */ color: rgb(31, 67, 110);
/* oklch */ color: oklch(37.9% 0.085 254.3);

Tailwind

colors: {
  custom: {
    50: '#657698',
    500: '#1f436e',
    950: '#000000',
  },
}

SCSS

$custom: #1f436e;
$custom-light: #657698;
$custom-dark: #000000;

JSON

{
  "hex": "#1f436e",
  "rgb": {
    "r": 31,
    "g": 67,
    "b": 110
  },
  "hsl": {
    "h": 212.658,
    "s": 56.028,
    "l": 27.647
  },
  "oklch": {
    "l": 0.37913,
    "c": 0.08482,
    "h": 254.3
  },
  "luminance": 0.05431
}

Semantic roles & 50–950 ramp

primary

#1F436E

secondary

#A27847

accent

#9B48DF

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #1F436E

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

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