#778E99
Closest named color: Blue Grey (#758DA3). oklch(63.2% 0.031 228.4), rgb(119, 142, 153).
Aa
Black text reads best on this color (6.11:1).
About this color
#778E99 is a medium-light, muted teal or cyan. In OKLCH its lightness is 63%, its chroma 0.031 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Grey (#758DA3), ΔE 0.017 away. Black text reads best on it, at 6.11:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Blue Grey (#758DA3) |
| Black text | 6.11:1 |
| White text | 3.43:1 |
Values
| HEX | #778E99 |
| RGB | rgb(119, 142, 153) |
| HSL | hsl(199, 14%, 53%) |
| OKLCH | oklch(63.2% 0.031 228.4) |
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 #778E99 | 3.43:1 | AA large text | Lc -67.3 | Content text, not long reading |
| Black text on #778E99 | 6.11:1 | AA | Lc 42.2 | Non-text elements, placeholder text |
| #778E99 text on white | 3.43:1 | AA large text | Lc 61.9 | Content text, not long reading |
| #778E99 text on black | 6.11:1 | AA | Lc -39.8 | 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
#D4DADD
oklch(88.5% 0.008 228.9)
-
Step 300
300
#B7C3C8
oklch(80.9% 0.015 224.5)
-
Step 400
400
#92A4AD
oklch(70.8% 0.024 229.2)
-
Step 500
500 (this color)
#778E99
oklch(63.2% 0.031 228.4)
-
Step 600
600
#5F7883
oklch(55.7% 0.034 226.5)
-
Step 700
700
#4E656F
oklch(49.2% 0.032 226.3)
-
Step 800
800
#40525A
oklch(42.6% 0.026 226.8)
-
Step 900
900
#37444A
oklch(37.7% 0.02 227.5)
-
Step 950
950
#20282B
oklch(27% 0.013 222.5)
#778E99 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) | #888D9A | 0.023 |
| Deuteranopia (no green cones) | #838999 | 0.020 |
| Tritanopia (no blue cones) | #6D9191 | 0.022 |
| Achromatopsia (no color) | #8A8A8A | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #778E99
#778E99
oklch(63.2% 0.031 228.4)
- #9A857A
#9A857A
oklch(63.3% 0.03 49.4)
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 #778E99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Grey #758DA3 ΔE 0.017
- Light Slate Gray #778899 ΔE 0.017
- Silver Lake Blue #778DA9 ΔE 0.026
- Steel #738595 ΔE 0.026
- Steel Grey #6F828A ΔE 0.039
- Slate Gray #708090 ΔE 0.041
- Lavender Gray #7E7F9A ΔE 0.044
- Gray #808080 ΔE 0.045
Use #778E99 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.