#73879D
Closest named color: Light Slate Gray (#778899). oklch(61.5% 0.041 251), rgb(115, 135, 157).
Aa
Black text reads best on this color (5.68:1).
About this color
#73879D is a medium-dark, muted blue. In OKLCH its lightness is 62%, its chroma 0.041 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Light Slate Gray (#778899), ΔE 0.009 away. Black text reads best on it, at 5.68:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Light Slate Gray (#778899) |
| Black text | 5.68:1 |
| White text | 3.69:1 |
Values
| HEX | #73879D |
| RGB | rgb(115, 135, 157) |
| HSL | hsl(211, 18%, 53%) |
| OKLCH | oklch(61.5% 0.041 251) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #73879D | 3.69:1 | AA large text | Lc -70.0 | Content text, not long reading |
| Black text on #73879D | 5.68:1 | AA | Lc 39.5 | Non-text elements, placeholder text |
| #73879D text on white | 3.69:1 | AA large text | Lc 64.5 | Content text, not long reading |
| #73879D text on black | 5.68:1 | AA | Lc -37.1 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D4DAE0
oklch(88.6% 0.011 247.9)
-
Step 300
300
#B7C2CD
oklch(80.9% 0.02 248.1)
-
Step 400
400
#92A2B4
oklch(70.6% 0.032 251.4)
-
Step 500
500 (this color)
#73879D
oklch(61.5% 0.041 251)
-
Step 600
600
#60768D
oklch(55.7% 0.044 249.8)
-
Step 700
700
#4F6378
oklch(49.2% 0.042 249.9)
-
Step 800
800
#415161
oklch(42.8% 0.033 248.6)
-
Step 900
900
#374350
oklch(37.8% 0.027 250.6)
-
Step 950
950
#20272F
oklch(26.9% 0.018 251.9)
#73879D with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #7F879E | 0.017 |
| Deuteranopia (no green cones) | #7A839D | 0.014 |
| Tritanopia (no blue cones) | #678C8E | 0.035 |
| Achromatopsia (no color) | #858585 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #73879D
#73879D
oklch(61.5% 0.041 251)
- #95816A
#95816A
oklch(61.5% 0.041 70.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #73879D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Slate Gray #778899 ΔE 0.009
- Steel #738595 ΔE 0.012
- Blue Grey #758DA3 ΔE 0.018
- Silver Lake Blue #778DA9 ΔE 0.023
- Slate Gray #708090 ΔE 0.025
- Lavender Gray #7E7F9A ΔE 0.025
- Steel Grey #6F828A ΔE 0.030
- Dusty Blue #5A86AD ΔE 0.038
Use #73879D in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.