#677F6B
Closest named color: Slate Green (#658D6D). oklch(57.1% 0.041 149.8), rgb(103, 127, 107).
Aa
Black text reads best on this color (4.82:1).
About this color
#677F6B is a medium-dark, muted green. In OKLCH its lightness is 57%, its chroma 0.041 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.041 away. Black text reads best on it, at 4.82:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.041) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 4.82:1 |
| White text | 4.35:1 |
Values
| HEX | #677F6B |
| RGB | rgb(103, 127, 107) |
| HSL | hsl(130, 10%, 45%) |
| OKLCH | oklch(57.1% 0.041 149.8) |
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 #677F6B | 4.35:1 | AA large text | Lc -75.6 | Fine for body text |
| Black text on #677F6B | 4.82:1 | AA | Lc 33.9 | Non-text elements, placeholder text |
| #677F6B text on white | 4.35:1 | AA large text | Lc 70.2 | Content text, not long reading |
| #677F6B text on black | 4.82:1 | AA | Lc -31.5 | 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 600.
-
Step 50
50
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E7EBE8
oklch(93.6% 0.006 153.8)
-
Step 200
200
#D5DBD5
oklch(88.5% 0.01 145.5)
-
Step 300
300
#B9C4BA
oklch(80.9% 0.018 148.1)
-
Step 400
400
#94A697
oklch(70.7% 0.03 150.2)
-
Step 500
500
#7A907D
oklch(63% 0.038 149)
-
Step 600
600 (this color)
#677F6B
oklch(57.1% 0.041 149.8)
-
Step 700
700
#526755
oklch(49.1% 0.038 149)
-
Step 800
800
#435446
oklch(42.7% 0.031 150.1)
-
Step 900
900
#39453B
oklch(37.6% 0.023 150)
-
Step 950
950
#212922
oklch(27.1% 0.017 148.6)
#677F6B 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) | #7F7B6A | 0.035 |
| Deuteranopia (no green cones) | #7B786C | 0.034 |
| Tritanopia (no blue cones) | #647E79 | 0.022 |
| Achromatopsia (no color) | #797979 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #677F6B
#677F6B
oklch(57.1% 0.041 149.8)
- #866F84
#866F84
oklch(57.1% 0.042 328.9)
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 #677F6B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.041
- Medium Grey #7D7F7C ΔE 0.043
- Battleship Grey #6B7C85 ΔE 0.045
- Dark Sage #598556 ΔE 0.045
- Battleship Gray #6C757D ΔE 0.048
- Steel Grey #6F828A ΔE 0.048
- Gray #808080 ΔE 0.050
- Grey Brown #7F7053 ΔE 0.052
Use #677F6B 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.