#1F4E75#1F4E75

#1F4E75 is a dark, moderate cyan. Relative luminance 0.070; OKLCH L 41.1% C 0.083 H 246.7°. Best body text is #FFFFFF at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E75
RGB	rgb(31, 78, 117)
HSL	hsl(207, 58%, 29%)
HSV	hsv(207, 74%, 46%)
CMYK	cmyk(73.5%, 33.3%, 0%, 54.1%)
CIE-LAB	lab(31.86, -1.84, -26.92)
CIE-LCH	lch(31.86, 26.98, 266.10°)
OKLab	oklab(41.13% -0.0328 -0.0762)
OKLCH	oklch(41.13% 0.083 246.7)
XYZ	xyz(6.4991, 7.0237, 17.8394)
Luminance	0.0702 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E75 #75461F

analogous

#1F7571 #1F4E75 #1F2375

triadic

#1F4E75 #751F4E #4E751F

tetradic

#1F4E75 #711F75 #75461F #23751F

square

#1F4E75 #711F75 #75461F #23751F

split-complementary

#1F4E75 #751F23 #75711F

monochromatic

#061018 #122E45 #1F4E75 #2C6EA5 #428ECD

Accessibility & contrast

On white

8.73

#1F4E75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#1F4E75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E75

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E75	#FFFFFF	#000000	##FFFFFF
##1F4E75	1.00	8.73	2.40	8.73
#FFFFFF	8.73	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C4F77

Deuteranopia (green-blind)

#304774

Tritanopia (blue-blind)

#00575C

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1f4e75;
/* rgb */ color: rgb(31, 78, 117);
/* oklch */ color: oklch(41.1% 0.083 246.7);

Tailwind

colors: {
  custom: {
    50: '#667f9d',
    500: '#1f4e75',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e75;
$custom-light: #667f9d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e75",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 117
  },
  "hsl": {
    "h": 207.209,
    "s": 58.108,
    "l": 29.02
  },
  "oklch": {
    "l": 0.41125,
    "c": 0.08299,
    "h": 246.7
  },
  "luminance": 0.07024
}

Semantic roles & 50–950 ramp

primary

#1F4E75

secondary

#A97347

accent

#8D46E1

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0E

muted

#7A7C7E

Preview Lab

Preview with #1F4E75

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

Preview Lab → · Contrast checker → · Palette generator →