#1F4E7F#1F4E7F

#1F4E7F is a dark, moderate cyan. Relative luminance 0.073; OKLCH L 41.7% C 0.097 H 252.0°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E7F
RGB	rgb(31, 78, 127)
HSL	hsl(211, 61%, 31%)
HSV	hsv(211, 76%, 50%)
CMYK	cmyk(75.6%, 38.6%, 0%, 50.2%)
CIE-LAB	lab(32.42, 2.07, -32.26)
CIE-LCH	lch(32.42, 32.33, 273.67°)
OKLab	oklab(41.74% -0.0298 -0.0919)
OKLCH	oklch(41.74% 0.097 252)
XYZ	xyz(7.1188, 7.2716, 21.1029)
Luminance	0.0727 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E7F #7F501F

analogous

#1F7E7F #1F4E7F #201F7F

triadic

#1F4E7F #7F1F4E #4E7F1F

tetradic

#1F4E7F #7F1F7E #7F501F #1F7F20

square

#1F4E7F #7F1F7E #7F501F #1F7F20

split-complementary

#1F4E7F #7F201F #7E7F1F

monochromatic

#07121D #13304E #1F4E7F #2B6CB0 #468BD2

Accessibility & contrast

On white

8.56

#1F4E7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#1F4E7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E7F

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E7F	#FFFFFF	#000000	##FFFFFF
##1F4E7F	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#375181

Deuteranopia (green-blind)

#29487E

Tritanopia (blue-blind)

#005A60

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1f4e7f;
/* rgb */ color: rgb(31, 78, 127);
/* oklch */ color: oklch(41.7% 0.097 252.0);

Tailwind

colors: {
  custom: {
    50: '#687fa4',
    500: '#1f4e7f',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e7f;
$custom-light: #687fa4;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e7f",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 127
  },
  "hsl": {
    "h": 210.625,
    "s": 60.759,
    "l": 30.98
  },
  "oklch": {
    "l": 0.41744,
    "c": 0.09658,
    "h": 252
  },
  "luminance": 0.07272
}

Semantic roles & 50–950 ramp

primary

#1F4E7F

secondary

#B27E48

accent

#9644E4

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1F4E7F

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

Preview Lab → · Contrast checker → · Palette generator →