#1F455E#1F455E

#1F455E is a dark, moderate cyan. Relative luminance 0.054; OKLCH L 37.5% C 0.061 H 240.0°. Best body text is #FFFFFF at 10.14:1 contrast (WCAG AA passes).

Color values

HEX	#1F455E
RGB	rgb(31, 69, 94)
HSL	hsl(204, 50%, 25%)
HSV	hsv(204, 67%, 37%)
CMYK	cmyk(67%, 26.6%, 0%, 63.1%)
CIE-LAB	lab(27.72, -4.77, -18.80)
CIE-LCH	lch(27.72, 19.40, 255.75°)
OKLab	oklab(37.47% -0.0305 -0.0528)
OKLCH	oklch(37.47% 0.061 240)
XYZ	xyz(4.7128, 5.3552, 11.3728)
Luminance	0.0536 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F455E #5E381F

analogous

#1F5E58 #1F455E #1F255E

triadic

#1F455E #5E1F45 #455E1F

tetradic

#1F455E #581F5E #5E381F #255E1F

square

#1F455E #581F5E #5E381F #255E1F

split-complementary

#1F455E #5E1F25 #5E581F

monochromatic

#081117 #102330 #1F455E #2E678C #3D89BA

Accessibility & contrast

On white

10.14

#1F455E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#1F455E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F455E

10.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F455E	#FFFFFF	#000000	##FFFFFF
##1F455E	1.00	10.14	2.07	10.14
#FFFFFF	10.14	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A455F

Deuteranopia (green-blind)

#313F5E

Tritanopia (blue-blind)

#004B4E

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1f455e;
/* rgb */ color: rgb(31, 69, 94);
/* oklch */ color: oklch(37.5% 0.061 240.0);

Tailwind

colors: {
  custom: {
    50: '#62788b',
    500: '#1f455e',
    950: '#000000',
  },
}

SCSS

$custom: #1f455e;
$custom-light: #62788b;
$custom-dark: #000000;

JSON

{
  "hex": "#1f455e",
  "rgb": {
    "r": 31,
    "g": 69,
    "b": 94
  },
  "hsl": {
    "h": 203.81,
    "s": 50.4,
    "l": 24.51
  },
  "oklch": {
    "l": 0.3747,
    "c": 0.06098,
    "h": 240
  },
  "luminance": 0.05356
}

Semantic roles & 50–950 ramp

primary

#1F455E

secondary

#936546

accent

#854EDA

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#05090C

muted

#7A7B7D

Preview Lab

Preview with #1F455E

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

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