#1F497E#1F497E

#1F497E is a dark, moderate cyan. Relative luminance 0.066; OKLCH L 40.5% C 0.101 H 255.6°. Best body text is #FFFFFF at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#1F497E
RGB	rgb(31, 73, 126)
HSL	hsl(213, 61%, 31%)
HSV	hsv(213, 75%, 49%)
CMYK	cmyk(75.4%, 42.1%, 0%, 50.6%)
CIE-LAB	lab(30.79, 5.00, -34.23)
CIE-LCH	lch(30.79, 34.60, 278.30°)
OKLab	oklab(40.45% -0.025 -0.0977)
OKLCH	oklch(40.45% 0.101 255.6)
XYZ	xyz(6.7121, 6.5620, 20.6475)
Luminance	0.0656 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F497E #7E541F

analogous

#1F787E #1F497E #241F7E

triadic

#1F497E #7E1F49 #497E1F

tetradic

#1F497E #7E1F78 #7E541F #1F7E24

square

#1F497E #7E1F78 #7E541F #1F7E24

split-complementary

#1F497E #7E241F #787E1F

monochromatic

#07101C #132D4D #1F497E #2B65AF #4684D1

Accessibility & contrast

On white

9.08

#1F497E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#1F497E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F497E

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F497E	#FFFFFF	#000000	##FFFFFF
##1F497E	1.00	9.08	2.31	9.08
#FFFFFF	9.08	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#304D80

Deuteranopia (green-blind)

#20447D

Tritanopia (blue-blind)

#00555D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1f497e;
/* rgb */ color: rgb(31, 73, 126);
/* oklch */ color: oklch(40.5% 0.101 255.6);

Tailwind

colors: {
  custom: {
    50: '#687ba4',
    500: '#1f497e',
    950: '#000000',
  },
}

SCSS

$custom: #1f497e;
$custom-light: #687ba4;
$custom-dark: #000000;

JSON

{
  "hex": "#1f497e",
  "rgb": {
    "r": 31,
    "g": 73,
    "b": 126
  },
  "hsl": {
    "h": 213.474,
    "s": 60.51,
    "l": 30.784
  },
  "oklch": {
    "l": 0.40454,
    "c": 0.10089,
    "h": 255.6
  },
  "luminance": 0.06563
}

Semantic roles & 50–950 ramp

primary

#1F497E

secondary

#B18348

accent

#9D44E4

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #1F497E

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

Preview Lab → · Contrast checker → · Palette generator →