#638470
Closest named color: Slate Green (#658D6D). oklch(58.2% 0.048 157.9), rgb(99, 132, 112).
Aa
Black text reads best on this color (5.06:1).
About this color
#638470 is a medium-dark, muted green. In OKLCH its lightness is 58%, its chroma 0.048 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.029 away. Black text reads best on it, at 5.06:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | muted (0.048) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.06:1 |
| White text | 4.14:1 |
Values
| HEX | #638470 |
| RGB | rgb(99, 132, 112) |
| HSL | hsl(144, 14%, 45%) |
| OKLCH | oklch(58.2% 0.048 157.9) |
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 #638470 | 4.14:1 | AA large text | Lc -74.0 | Content text, not long reading |
| Black text on #638470 | 5.06:1 | AA | Lc 35.6 | Non-text elements, placeholder text |
| #638470 text on white | 4.14:1 | AA large text | Lc 68.5 | Content text, not long reading |
| #638470 text on black | 5.06:1 | AA | Lc -33.2 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E7EBE8
oklch(93.6% 0.006 153.8)
-
Step 200
200
#D3DCD6
oklch(88.6% 0.013 157)
-
Step 300
300
#B6C5BB
oklch(80.9% 0.021 156.7)
-
Step 400
400
#8FA898
oklch(70.8% 0.036 157.3)
-
Step 500
500
#73927F
oklch(63.1% 0.045 157.9)
-
Step 600
600 (this color)
#638470
oklch(58.2% 0.048 157.9)
-
Step 700
700
#4B6957
oklch(49.2% 0.045 157.9)
-
Step 800
800
#3E5547
oklch(42.6% 0.036 157.7)
-
Step 900
900
#35463C
oklch(37.6% 0.028 158.9)
-
Step 950
950
#1F2923
oklch(26.9% 0.018 158.6)
#638470 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) | #837F6F | 0.045 |
| Deuteranopia (no green cones) | #7E7B71 | 0.044 |
| Tritanopia (no blue cones) | #5D847E | 0.021 |
| Achromatopsia (no color) | #7C7C7C | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #638470
#638470
oklch(58.2% 0.048 157.9)
- #8F7085
#8F7085
oklch(58.2% 0.049 338.4)
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 #638470, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.029
- Dusty Teal #4C9085 ΔE 0.041
- Dark Sage #598556 ΔE 0.042
- Medium Grey #7D7F7C ΔE 0.045
- Steel Grey #6F828A ΔE 0.047
- Battleship Grey #6B7C85 ΔE 0.048
- Gray #808080 ΔE 0.052
- Green Grey #77926F ΔE 0.052
Use #638470 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.