#778B8A
Closest named color: Light Slate Gray (#778899). oklch(62.1% 0.023 192.9), rgb(119, 139, 138).
Aa
Black text reads best on this color (5.84:1).
About this color
#778B8A is a medium-light close to neutral grey. In OKLCH its lightness is 62%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Light Slate Gray (#778899), ΔE 0.027 away. Black text reads best on it, at 5.84:1.
| Hue family | Neutrals |
| Lightness | medium-light (62%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Light Slate Gray (#778899) |
| Black text | 5.84:1 |
| White text | 3.59:1 |
Values
| HEX | #778B8A |
| RGB | rgb(119, 139, 138) |
| HSL | hsl(177, 8%, 51%) |
| OKLCH | oklch(62.1% 0.023 192.9) |
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 #778B8A | 3.59:1 | AA large text | Lc -69.0 | Content text, not long reading |
| Black text on #778B8A | 5.84:1 | AA | Lc 40.5 | Non-text elements, placeholder text |
| #778B8A text on white | 3.59:1 | AA large text | Lc 63.5 | Content text, not long reading |
| #778B8A text on black | 5.84:1 | AA | Lc -38.1 | 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
#E7EAEA
oklch(93.5% 0.003 197.1)
-
Step 200
200
#D5DADA
oklch(88.5% 0.005 197.1)
-
Step 300
300
#B9C3C2
oklch(80.9% 0.011 189.8)
-
Step 400
400
#94A4A3
oklch(70.6% 0.018 192.2)
-
Step 500
500 (this color)
#778B8A
oklch(62.1% 0.023 192.9)
-
Step 600
600
#637877
oklch(55.5% 0.025 192.9)
-
Step 700
700
#526564
oklch(49.1% 0.023 192.5)
-
Step 800
800
#435352
oklch(42.8% 0.02 191.8)
-
Step 900
900
#394444
oklch(37.7% 0.014 196.6)
-
Step 950
950
#212828
oklch(27% 0.01 196.6)
#778B8A 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) | #88898A | 0.024 |
| Deuteranopia (no green cones) | #84868A | 0.022 |
| Tritanopia (no blue cones) | #718C8B | 0.008 |
| Achromatopsia (no color) | #878787 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #778B8A
#778B8A
oklch(62.1% 0.023 192.9)
- #948182
#948182
oklch(62.1% 0.023 14.2)
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 #778B8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Slate Gray #778899 ΔE 0.027
- Steel #738595 ΔE 0.029
- Steel Grey #6F828A ΔE 0.030
- Gray #808080 ΔE 0.031
- Medium Grey #7D7F7C ΔE 0.034
- Blue Grey #758DA3 ΔE 0.037
- Slate Gray #708090 ΔE 0.038
- Warm Grey #978A84 ΔE 0.045
Use #778B8A 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.