#78909B
Closest named color: Blue Grey (#758DA3). oklch(63.8% 0.032 227.3), rgb(120, 144, 155).
Aa
Black text reads best on this color (6.26:1).
About this color
#78909B is a medium-light, muted teal or cyan. In OKLCH its lightness is 64%, its chroma 0.032 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Grey (#758DA3), ΔE 0.018 away. Black text reads best on it, at 6.26:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Blue Grey (#758DA3) |
| Black text | 6.26:1 |
| White text | 3.35:1 |
Values
| HEX | #78909B |
| RGB | rgb(120, 144, 155) |
| HSL | hsl(199, 15%, 54%) |
| OKLCH | oklch(63.8% 0.032 227.3) |
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 #78909B | 3.35:1 | AA large text | Lc -66.4 | Content text, not long reading |
| Black text on #78909B | 6.26:1 | AA | Lc 43.1 | Non-text elements, placeholder text |
| #78909B text on white | 3.35:1 | AA large text | Lc 61.0 | Content text, not long reading |
| #78909B text on black | 6.26:1 | AA | Lc -40.7 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EAEC
oklch(93.5% 0.004 236.5)
-
Step 200
200
#D3DADE
oklch(88.4% 0.009 232.4)
-
Step 300
300
#B7C3C9
oklch(81% 0.016 229)
-
Step 400
400
#91A4AD
oklch(70.7% 0.025 227.9)
-
Step 500
500 (this color)
#78909B
oklch(63.8% 0.032 227.3)
-
Step 600
600
#5E7883
oklch(55.6% 0.035 225.6)
-
Step 700
700
#4E656F
oklch(49.2% 0.032 226.3)
-
Step 800
800
#40525B
oklch(42.7% 0.027 229.8)
-
Step 900
900
#36444A
oklch(37.7% 0.021 225.8)
-
Step 950
950
#20282C
oklch(27.1% 0.014 229.5)
#78909B 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) | #8A8F9C | 0.025 |
| Deuteranopia (no green cones) | #858A9B | 0.023 |
| Tritanopia (no blue cones) | #6E9393 | 0.022 |
| Achromatopsia (no color) | #8C8C8C | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #78909B
#78909B
oklch(63.8% 0.032 227.3)
- #9D867B
#9D867B
oklch(63.8% 0.033 47.1)
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 #78909B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Grey #758DA3 ΔE 0.018
- Light Slate Gray #778899 ΔE 0.023
- Silver Lake Blue #778DA9 ΔE 0.026
- Steel #738595 ΔE 0.032
- Cadet Blue #5F9EA0 ΔE 0.045
- Steel Grey #6F828A ΔE 0.045
- Cool Gray #8D99AE ΔE 0.046
- Slate Gray #708090 ΔE 0.047
Use #78909B 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.