#1F4E7E#1F4E7E

#1F4E7E is a dark, moderate cyan. Relative luminance 0.072; OKLCH L 41.7% C 0.095 H 251.6°. Best body text is #FFFFFF at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E7E
RGB	rgb(31, 78, 126)
HSL	hsl(210, 61%, 31%)
HSV	hsv(210, 75%, 49%)
CMYK	cmyk(75.4%, 38.1%, 0%, 50.6%)
CIE-LAB	lab(32.36, 1.67, -31.74)
CIE-LCH	lch(32.36, 31.78, 273.02°)
OKLab	oklab(41.68% -0.0301 -0.0903)
OKLCH	oklch(41.68% 0.095 251.6)
XYZ	xyz(7.0539, 7.2457, 20.7614)
Luminance	0.0725 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E7E #7E4F1F

analogous

#1F7D7E #1F4E7E #1F1F7E

triadic

#1F4E7E #7E1F4E #4E7E1F

tetradic

#1F4E7E #7E1F7D #7E4F1F #1F7E1F

square

#1F4E7E #7E1F7D #7E4F1F #1F7E1F

split-complementary

#1F4E7E #7E1F1F #7D7E1F

monochromatic

#07111C #13304D #1F4E7E #2B6CAF #468BD1

Accessibility & contrast

On white

8.57

#1F4E7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#1F4E7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E7E

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E7E	#FFFFFF	#000000	##FFFFFF
##1F4E7E	1.00	8.57	2.45	8.57
#FFFFFF	8.57	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#385180

Deuteranopia (green-blind)

#2A487D

Tritanopia (blue-blind)

#005960

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1f4e7e;
/* rgb */ color: rgb(31, 78, 126);
/* oklch */ color: oklch(41.7% 0.095 251.6);

Tailwind

colors: {
  custom: {
    50: '#687fa3',
    500: '#1f4e7e',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e7e;
$custom-light: #687fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e7e",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 126
  },
  "hsl": {
    "h": 210.316,
    "s": 60.51,
    "l": 30.784
  },
  "oklch": {
    "l": 0.4168,
    "c": 0.09519,
    "h": 251.6
  },
  "luminance": 0.07246
}

Semantic roles & 50–950 ramp

primary

#1F4E7E

secondary

#B17D48

accent

#9544E4

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1F4E7E

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

Preview Lab → · Contrast checker → · Palette generator →