#77859B
Closest named color: Light Slate Gray (#778899). oklch(61.3% 0.037 259.4), rgb(119, 133, 155).
Aa
Black text reads best on this color (5.61:1).
About this color
#77859B is a medium-dark, muted blue. In OKLCH its lightness is 61%, its chroma 0.037 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Light Slate Gray (#778899), ΔE 0.010 away. Black text reads best on it, at 5.61:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Light Slate Gray (#778899) |
| Black text | 5.61:1 |
| White text | 3.74:1 |
Values
| HEX | #77859B |
| RGB | rgb(119, 133, 155) |
| HSL | hsl(217, 15%, 54%) |
| OKLCH | oklch(61.3% 0.037 259.4) |
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 #77859B | 3.74:1 | AA large text | Lc -70.5 | Content text, not long reading |
| Black text on #77859B | 5.61:1 | AA | Lc 39.1 | Non-text elements, placeholder text |
| #77859B text on white | 3.74:1 | AA large text | Lc 65.0 | Content text, not long reading |
| #77859B text on black | 5.61:1 | AA | Lc -36.7 | 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
#E8EAED
oklch(93.6% 0.005 258.3)
-
Step 200
200
#D5D9E0
oklch(88.4% 0.011 261.8)
-
Step 300
300
#BAC1CD
oklch(80.9% 0.019 261.3)
-
Step 400
400
#96A1B3
oklch(70.6% 0.029 260.3)
-
Step 500
500 (this color)
#77859B
oklch(61.3% 0.037 259.4)
-
Step 600
600
#65748B
oklch(55.5% 0.04 258.8)
-
Step 700
700
#546176
oklch(49% 0.037 259.9)
-
Step 800
800
#455060
oklch(42.8% 0.03 257.7)
-
Step 900
900
#3A424F
oklch(37.7% 0.025 260.1)
-
Step 950
950
#22272E
oklch(27.1% 0.015 256.8)
#77859B 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) | #7E869C | 0.011 |
| Deuteranopia (no green cones) | #7A829B | 0.009 |
| Tritanopia (no blue cones) | #6E8A8C | 0.034 |
| Achromatopsia (no color) | #848484 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #77859B
#77859B
oklch(61.3% 0.037 259.4)
- #90826B
#90826B
oklch(61.3% 0.037 80.1)
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 #77859B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Slate Gray #778899 ΔE 0.010
- Steel #738595 ΔE 0.011
- Lavender Gray #7E7F9A ΔE 0.018
- Blue Grey #758DA3 ΔE 0.022
- Slate Gray #708090 ΔE 0.023
- Silver Lake Blue #778DA9 ΔE 0.026
- Steel Grey #6F828A ΔE 0.029
- Grey Blue #647D8E ΔE 0.040
Use #77859B 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.