#7F879F
Closest named color: Light Slate Gray (#778899). oklch(62.5% 0.037 270.8), rgb(127, 135, 159).
Aa
Black text reads best on this color (5.86:1).
About this color
#7F879F is a medium-light, muted blue. In OKLCH its lightness is 63%, its chroma 0.037 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Light Slate Gray (#778899), ΔE 0.016 away. Black text reads best on it, at 5.86:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Light Slate Gray (#778899) |
| Black text | 5.86:1 |
| White text | 3.57:1 |
Values
| HEX | #7F879F |
| RGB | rgb(127, 135, 159) |
| HSL | hsl(225, 14%, 56%) |
| OKLCH | oklch(62.5% 0.037 270.8) |
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 #7F879F | 3.57:1 | AA large text | Lc -68.9 | Content text, not long reading |
| Black text on #7F879F | 5.86:1 | AA | Lc 40.7 | Non-text elements, placeholder text |
| #7F879F text on white | 3.57:1 | AA large text | Lc 63.4 | Content text, not long reading |
| #7F879F text on black | 5.86:1 | AA | Lc -38.3 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E8EAED
oklch(93.6% 0.005 258.3)
-
Step 200
200
#D6D9E0
oklch(88.5% 0.01 267.4)
-
Step 300
300
#BCC0CD
oklch(80.9% 0.019 272.3)
-
Step 400
400
#99A0B3
oklch(70.6% 0.029 269.5)
-
Step 500
500 (this color)
#7F879F
oklch(62.5% 0.037 270.8)
-
Step 600
600
#6A728C
oklch(55.5% 0.042 271.6)
-
Step 700
700
#586077
oklch(49.1% 0.038 269.9)
-
Step 800
800
#484E61
oklch(42.6% 0.033 271.3)
-
Step 900
900
#3D414F
oklch(37.7% 0.025 272.6)
-
Step 950
950
#23262E
oklch(26.9% 0.016 269.1)
#7F879F 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) | #8089A0 | 0.006 |
| Deuteranopia (no green cones) | #7E869E | 0.003 |
| Tritanopia (no blue cones) | #778B8F | 0.033 |
| Achromatopsia (no color) | #878787 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7F879F
#7F879F
oklch(62.5% 0.037 270.8)
- #90876E
#90876E
oklch(62.4% 0.038 90.6)
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 #7F879F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Slate Gray #778899 ΔE 0.016
- Blue Grey #758DA3 ΔE 0.019
- Silver Lake Blue #778DA9 ΔE 0.020
- Lavender Gray #7E7F9A ΔE 0.022
- Steel #738595 ΔE 0.024
- Slate Gray #708090 ΔE 0.036
- Purpley Grey #947E94 ΔE 0.037
- Steel Grey #6F828A ΔE 0.041
Use #7F879F 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.