#1F4B76#1F4B76

#1F4B76 is a dark, moderate cyan. Relative luminance 0.066; OKLCH L 40.4% C 0.087 H 250.4°. Best body text is #FFFFFF at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#1F4B76
RGB	rgb(31, 75, 118)
HSL	hsl(210, 58%, 29%)
HSV	hsv(210, 74%, 46%)
CMYK	cmyk(73.7%, 36.4%, 0%, 53.7%)
CIE-LAB	lab(30.95, 0.51, -28.98)
CIE-LCH	lch(30.95, 28.98, 271.00°)
OKLab	oklab(40.43% -0.0292 -0.0823)
OKLCH	oklch(40.43% 0.087 250.4)
XYZ	xyz(6.3499, 6.6308, 18.0812)
Luminance	0.0663 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4B76 #764A1F

analogous

#1F7676 #1F4B76 #1F2076

triadic

#1F4B76 #761F4B #4B761F

tetradic

#1F4B76 #761F76 #764A1F #20761F

square

#1F4B76 #761F76 #764A1F #20761F

split-complementary

#1F4B76 #761F20 #76761F

monochromatic

#060F18 #122C46 #1F4B76 #2C6AA6 #4289CD

Accessibility & contrast

On white

9.03

#1F4B76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#1F4B76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4B76

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4B76	#FFFFFF	#000000	##FFFFFF
##1F4B76	1.00	9.03	2.33	9.03
#FFFFFF	9.03	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#384D78

Deuteranopia (green-blind)

#2B4575

Tritanopia (blue-blind)

#00555B

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1f4b76;
/* rgb */ color: rgb(31, 75, 118);
/* oklch */ color: oklch(40.4% 0.087 250.4);

Tailwind

colors: {
  custom: {
    50: '#667d9e',
    500: '#1f4b76',
    950: '#000000',
  },
}

SCSS

$custom: #1f4b76;
$custom-light: #667d9e;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4b76",
  "rgb": {
    "r": 31,
    "g": 75,
    "b": 118
  },
  "hsl": {
    "h": 209.655,
    "s": 58.389,
    "l": 29.216
  },
  "oklch": {
    "l": 0.40428,
    "c": 0.08735,
    "h": 250.4
  },
  "luminance": 0.06631
}

Semantic roles & 50–950 ramp

primary

#1F4B76

secondary

#AA7847

accent

#9346E2

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#06090E

muted

#7A7B7E

Preview Lab

Preview with #1F4B76

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

Preview Lab → · Contrast checker → · Palette generator →