#277CAA#277CAA

#277CAA is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.8% C 0.106 H 237.3°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#277CAA
RGB	rgb(39, 124, 170)
HSL	hsl(201, 63%, 41%)
HSV	hsv(201, 77%, 67%)
CMYK	cmyk(77.1%, 27.1%, 0%, 33.3%)
CIE-LAB	lab(49.19, -9.01, -31.61)
CIE-LCH	lch(49.19, 32.87, 254.09°)
OKLab	oklab(55.77% -0.0574 -0.0892)
OKLCH	oklch(55.77% 0.106 237.3)
XYZ	xyz(15.2972, 17.7471, 40.6417)
Luminance	0.1775 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277CAA #AA5527

analogous

#27AA96 #277CAA #273AAA

triadic

#277CAA #AA277C #7CAA27

tetradic

#277CAA #9627AA #AA5527 #3AAA27

square

#277CAA #9627AA #AA5527 #3AAA27

split-complementary

#277CAA #AA273A #AA9627

monochromatic

#103346 #1C5878 #277CAA #3C9DD2 #6EB6DE

Accessibility & contrast

On white

4.62

#277CAA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#277CAA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #277CAA

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277CAA	#FFFFFF	#000000	##FFFFFF
##277CAA	1.00	4.62	4.55	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#667CAC

Deuteranopia (green-blind)

#546FA9

Tritanopia (blue-blind)

#00888C

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #277caa;
/* rgb */ color: rgb(39, 124, 170);
/* oklch */ color: oklch(55.8% 0.106 237.3);

Tailwind

colors: {
  custom: {
    50: '#75a1c3',
    500: '#277caa',
    950: '#000000',
  },
}

SCSS

$custom: #277caa;
$custom-light: #75a1c3;
$custom-dark: #000000;

JSON

{
  "hex": "#277caa",
  "rgb": {
    "r": 39,
    "g": 124,
    "b": 170
  },
  "hsl": {
    "h": 201.069,
    "s": 62.679,
    "l": 40.98
  },
  "oklch": {
    "l": 0.5577,
    "c": 0.10611,
    "h": 237.3
  },
  "luminance": 0.17749
}

Semantic roles & 50–950 ramp

primary

#277CAA

secondary

#C48969

accent

#7C42E6

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #277CAA

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

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