#1F4E6B#1F4E6B

#1F4E6B is a dark, moderate cyan. Relative luminance 0.068; OKLCH L 40.6% C 0.070 H 239.0°. Best body text is #FFFFFF at 8.90:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E6B
RGB	rgb(31, 78, 107)
HSL	hsl(203, 55%, 27%)
HSV	hsv(203, 71%, 42%)
CMYK	cmyk(71%, 27.1%, 0%, 58%)
CIE-LAB	lab(31.35, -5.65, -21.44)
CIE-LCH	lch(31.35, 22.17, 255.25°)
OKLab	oklab(40.55% -0.0362 -0.0603)
OKLCH	oklch(40.55% 0.07 239)
XYZ	xyz(5.9423, 6.8010, 14.9066)
Luminance	0.0680 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E6B #6B3C1F

analogous

#1F6B62 #1F4E6B #1F286B

triadic

#1F4E6B #6B1F4E #4E6B1F

tetradic

#1F4E6B #621F6B #6B3C1F #286B1F

square

#1F4E6B #621F6B #6B3C1F #286B1F

split-complementary

#1F4E6B #6B1F28 #6B621F

monochromatic

#071118 #112B3C #1F4E6B #2D719A #3D92C7

Accessibility & contrast

On white

8.90

#1F4E6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#1F4E6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E6B

8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E6B	#FFFFFF	#000000	##FFFFFF
##1F4E6B	1.00	8.90	2.36	8.90
#FFFFFF	8.90	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#414E6C

Deuteranopia (green-blind)

#36466A

Tritanopia (blue-blind)

#005558

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1f4e6b;
/* rgb */ color: rgb(31, 78, 107);
/* oklch */ color: oklch(40.6% 0.070 239.0);

Tailwind

colors: {
  custom: {
    50: '#647f95',
    500: '#1f4e6b',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e6b;
$custom-light: #647f95;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e6b",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 107
  },
  "hsl": {
    "h": 202.895,
    "s": 55.072,
    "l": 27.059
  },
  "oklch": {
    "l": 0.40553,
    "c": 0.0704,
    "h": 239
  },
  "luminance": 0.06802
}

Semantic roles & 50–950 ramp

primary

#1F4E6B

secondary

#9F6847

accent

#8249DE

background

#F6F7F9

surface

#EBEEF1

border

#C6C9CB

text

#060A0D

muted

#7A7C7E

Preview Lab

Preview with #1F4E6B

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

Preview Lab → · Contrast checker → · Palette generator →