#7C878E
Closest named color: Light Slate Gray (#778899). oklch(61.7% 0.017 235.6), rgb(124, 135, 142).
Aa
Black text reads best on this color (5.71:1).
About this color
#7C878E is a medium-dark close to neutral grey. In OKLCH its lightness is 62%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Light Slate Gray (#778899), ΔE 0.017 away. Black text reads best on it, at 5.71:1.
| Hue family | Neutrals |
| Lightness | medium-dark (62%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Light Slate Gray (#778899) |
| Black text | 5.71:1 |
| White text | 3.67:1 |
Values
| HEX | #7C878E |
| RGB | rgb(124, 135, 142) |
| HSL | hsl(203, 7%, 52%) |
| OKLCH | oklch(61.7% 0.017 235.6) |
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 #7C878E | 3.67:1 | AA large text | Lc -69.9 | Content text, not long reading |
| Black text on #7C878E | 5.71:1 | AA | Lc 39.7 | Non-text elements, placeholder text |
| #7C878E text on white | 3.67:1 | AA large text | Lc 64.4 | Content text, not long reading |
| #7C878E text on black | 5.71:1 | AA | Lc -37.3 | 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
#F5F5F6
oklch(97% 0.001 286.4)
-
Step 100
100
#E8EAEB
oklch(93.6% 0.003 228.8)
-
Step 200
200
#D6DADC
oklch(88.6% 0.005 228.8)
-
Step 300
300
#BCC1C5
oklch(80.8% 0.008 241.7)
-
Step 400
400
#99A2A8
oklch(70.7% 0.014 236.7)
-
Step 500
500 (this color)
#7C878E
oklch(61.7% 0.017 235.6)
-
Step 600
600
#6A757D
oklch(55.6% 0.018 239.3)
-
Step 700
700
#586269
oklch(49% 0.017 238.3)
-
Step 800
800
#485056
oklch(42.6% 0.014 240.2)
-
Step 900
900
#3C4347
oklch(37.8% 0.012 232.7)
-
Step 950
950
#232729
oklch(27% 0.007 229.1)
#7C878E 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) | #84878E | 0.011 |
| Deuteranopia (no green cones) | #81848E | 0.011 |
| Tritanopia (no blue cones) | #778989 | 0.013 |
| Achromatopsia (no color) | #858585 | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7C878E
#7C878E
oklch(61.7% 0.017 235.6)
- #8E837C
#8E837C
oklch(61.8% 0.017 54.8)
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 #7C878E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Slate Gray #778899 ΔE 0.017
- Steel #738595 ΔE 0.018
- Gray #808080 ΔE 0.024
- Steel Grey #6F828A ΔE 0.024
- Slate Gray #708090 ΔE 0.029
- Medium Grey #7D7F7C ΔE 0.029
- Blue Grey #758DA3 ΔE 0.031
- Lavender Gray #7E7F9A ΔE 0.034
Use #7C878E 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.