#778F9B
Closest named color: Blue Grey (#758DA3). oklch(63.5% 0.033 229.6), rgb(119, 143, 155).
Aa
Black text reads best on this color (6.18:1).
About this color
#778F9B is a medium-light, muted teal or cyan. In OKLCH its lightness is 64%, its chroma 0.033 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Grey (#758DA3), ΔE 0.015 away. Black text reads best on it, at 6.18:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Blue Grey (#758DA3) |
| Black text | 6.18:1 |
| White text | 3.39:1 |
Values
| HEX | #778F9B |
| RGB | rgb(119, 143, 155) |
| HSL | hsl(200, 15%, 54%) |
| OKLCH | oklch(63.5% 0.033 229.6) |
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 #778F9B | 3.39:1 | AA large text | Lc -66.9 | Content text, not long reading |
| Black text on #778F9B | 6.18:1 | AA | Lc 42.6 | Non-text elements, placeholder text |
| #778F9B text on white | 3.39:1 | AA large text | Lc 61.4 | Content text, not long reading |
| #778F9B text on black | 6.18:1 | AA | Lc -40.3 | 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
#91A4AE
oklch(70.7% 0.026 230.6)
-
Step 500
500 (this color)
#778F9B
oklch(63.5% 0.033 229.6)
-
Step 600
600
#5E7884
oklch(55.7% 0.035 227.8)
-
Step 700
700
#4E6570
oklch(49.2% 0.033 228.7)
-
Step 800
800
#40525B
oklch(42.7% 0.027 229.8)
-
Step 900
900
#36444B
oklch(37.7% 0.022 229.7)
-
Step 950
950
#20282C
oklch(27.1% 0.014 229.5)
#778F9B 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) | #898E9C | 0.025 |
| Deuteranopia (no green cones) | #84899B | 0.023 |
| Tritanopia (no blue cones) | #6D9293 | 0.022 |
| Achromatopsia (no color) | #8B8B8B | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #778F9B
#778F9B
oklch(63.5% 0.033 229.6)
- #9C857A
#9C857A
oklch(63.5% 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 #778F9B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Grey #758DA3 ΔE 0.015
- Light Slate Gray #778899 ΔE 0.020
- Silver Lake Blue #778DA9 ΔE 0.024
- Steel #738595 ΔE 0.029
- Steel Grey #6F828A ΔE 0.042
- Slate Gray #708090 ΔE 0.044
- Lavender Gray #7E7F9A ΔE 0.046
- Cadet Blue #5F9EA0 ΔE 0.046
Use #778F9B 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.