#73879F
Closest named color: Light Slate Gray (#778899). oklch(61.6% 0.043 253.2), rgb(115, 135, 159).
Aa
Black text reads best on this color (5.69:1).
About this color
#73879F is a medium-dark, muted blue. In OKLCH its lightness is 62%, its chroma 0.043 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Light Slate Gray (#778899), ΔE 0.012 away. Black text reads best on it, at 5.69:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Light Slate Gray (#778899) |
| Black text | 5.69:1 |
| White text | 3.68:1 |
Values
| HEX | #73879F |
| RGB | rgb(115, 135, 159) |
| HSL | hsl(213, 19%, 54%) |
| OKLCH | oklch(61.6% 0.043 253.2) |
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 #73879F | 3.68:1 | AA large text | Lc -69.9 | Content text, not long reading |
| Black text on #73879F | 5.69:1 | AA | Lc 39.6 | Non-text elements, placeholder text |
| #73879F text on white | 3.68:1 | AA large text | Lc 64.5 | Content text, not long reading |
| #73879F text on black | 5.69:1 | AA | Lc -37.2 | 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
#D4DAE1
oklch(88.6% 0.012 252.1)
-
Step 300
300
#B7C2CE
oklch(80.9% 0.021 250.4)
-
Step 400
400
#92A2B6
oklch(70.6% 0.034 254.1)
-
Step 500
500 (this color)
#73879F
oklch(61.6% 0.043 253.2)
-
Step 600
600
#60758F
oklch(55.5% 0.048 254)
-
Step 700
700
#4F6279
oklch(49% 0.044 253.5)
-
Step 800
800
#415063
oklch(42.6% 0.037 254.5)
-
Step 900
900
#374351
oklch(37.8% 0.029 252.5)
-
Step 950
950
#20272F
oklch(26.9% 0.018 251.9)
#73879F 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) | #7E88A0 | 0.016 |
| Deuteranopia (no green cones) | #79839E | 0.013 |
| Tritanopia (no blue cones) | #678C8F | 0.036 |
| Achromatopsia (no color) | #858585 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #73879F
#73879F
oklch(61.6% 0.043 253.2)
- #958169
#958169
oklch(61.5% 0.042 72)
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 #73879F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Slate Gray #778899 ΔE 0.012
- Steel #738595 ΔE 0.015
- Blue Grey #758DA3 ΔE 0.017
- Silver Lake Blue #778DA9 ΔE 0.021
- Lavender Gray #7E7F9A ΔE 0.025
- Slate Gray #708090 ΔE 0.027
- Steel Grey #6F828A ΔE 0.033
- Dusty Blue #5A86AD ΔE 0.036
Use #73879F 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.