#1F457A#1F457A

#1F457A is a dark, moderate cyan. Relative luminance 0.060; OKLCH L 39.2% C 0.100 H 257.3°. Best body text is #FFFFFF at 9.59:1 contrast (WCAG AA passes).

Color values

HEX	#1F457A
RGB	rgb(31, 69, 122)
HSL	hsl(215, 59%, 30%)
HSV	hsv(215, 75%, 48%)
CMYK	cmyk(74.6%, 43.4%, 0%, 52.2%)
CIE-LAB	lab(29.29, 6.11, -34.12)
CIE-LCH	lch(29.29, 34.67, 280.14°)
OKLab	oklab(39.21% -0.022 -0.0975)
OKLCH	oklch(39.21% 0.1 257.3)
XYZ	xyz(6.2048, 5.9520, 19.2304)
Luminance	0.0595 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F457A #7A541F

analogous

#1F737A #1F457A #261F7A

triadic

#1F457A #7A1F45 #457A1F

tetradic

#1F457A #7A1F73 #7A541F #1F7A26

square

#1F457A #7A1F73 #7A541F #1F7A26

split-complementary

#1F457A #7A261F #737A1F

monochromatic

#060E18 #132949 #1F457A #2B61AB #447ECF

Accessibility & contrast

On white

9.59

#1F457A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#1F457A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F457A

9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F457A	#FFFFFF	#000000	##FFFFFF
##1F457A	1.00	9.59	2.19	9.59
#FFFFFF	9.59	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C4A7C

Deuteranopia (green-blind)

#1C4179

Tritanopia (blue-blind)

#005159

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1f457a;
/* rgb */ color: rgb(31, 69, 122);
/* oklch */ color: oklch(39.2% 0.100 257.3);

Tailwind

colors: {
  custom: {
    50: '#6778a1',
    500: '#1f457a',
    950: '#000000',
  },
}

SCSS

$custom: #1f457a;
$custom-light: #6778a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f457a",
  "rgb": {
    "r": 31,
    "g": 69,
    "b": 122
  },
  "hsl": {
    "h": 214.945,
    "s": 59.477,
    "l": 30
  },
  "oklch": {
    "l": 0.39211,
    "c": 0.09993,
    "h": 257.3
  },
  "luminance": 0.05953
}

Semantic roles & 50–950 ramp

primary

#1F457A

secondary

#AD8347

accent

#A145E3

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#07080F

muted

#7A7B7E

Preview Lab

Preview with #1F457A

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

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