#1F456C#1F456C

#1F456C is a dark, moderate cyan. Relative luminance 0.056; OKLCH L 38.3% C 0.080 H 251.2°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#1F456C
RGB	rgb(31, 69, 108)
HSL	hsl(210, 55%, 27%)
HSV	hsv(210, 71%, 42%)
CMYK	cmyk(71.3%, 36.1%, 0%, 57.6%)
CIE-LAB	lab(28.46, 0.57, -26.61)
CIE-LCH	lch(28.46, 26.62, 271.23°)
OKLab	oklab(38.29% -0.0257 -0.0755)
OKLCH	oklch(38.29% 0.08 251.2)
XYZ	xyz(5.3990, 5.6297, 14.9866)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F456C #6C461F

analogous

#1F6C6C #1F456C #201F6C

triadic

#1F456C #6C1F45 #456C1F

tetradic

#1F456C #6C1F6C #6C461F #1F6C20

square

#1F456C #6C1F6C #6C461F #1F6C20

split-complementary

#1F456C #6C201F #6C6C1F

monochromatic

#070F18 #11273C #1F456C #2D639C #3E82C8

Accessibility & contrast

On white

9.88

#1F456C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#1F456C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F456C

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F456C	#FFFFFF	#000000	##FFFFFF
##1F456C	1.00	9.88	2.13	9.88
#FFFFFF	9.88	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#34476E

Deuteranopia (green-blind)

#29406B

Tritanopia (blue-blind)

#004E53

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1f456c;
/* rgb */ color: rgb(31, 69, 108);
/* oklch */ color: oklch(38.3% 0.080 251.2);

Tailwind

colors: {
  custom: {
    50: '#647896',
    500: '#1f456c',
    950: '#000000',
  },
}

SCSS

$custom: #1f456c;
$custom-light: #647896;
$custom-dark: #000000;

JSON

{
  "hex": "#1f456c",
  "rgb": {
    "r": 31,
    "g": 69,
    "b": 108
  },
  "hsl": {
    "h": 210.39,
    "s": 55.396,
    "l": 27.255
  },
  "oklch": {
    "l": 0.3829,
    "c": 0.07973,
    "h": 251.2
  },
  "luminance": 0.0563
}

Semantic roles & 50–950 ramp

primary

#1F456C

secondary

#A07447

accent

#9549DF

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #1F456C

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

Preview Lab → · Contrast checker → · Palette generator →