#648F81
Closest named color: Dusty Teal (#4C9085). oklch(61.4% 0.052 172.3), rgb(100, 143, 129).
Aa
Black text reads best on this color (5.78:1).
About this color
#648F81 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 61%, its chroma 0.052 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.024 away. Black text reads best on it, at 5.78:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.78:1 |
| White text | 3.62:1 |
Values
| HEX | #648F81 |
| RGB | rgb(100, 143, 129) |
| HSL | hsl(160, 18%, 48%) |
| OKLCH | oklch(61.4% 0.052 172.3) |
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 #648F81 | 3.62:1 | AA large text | Lc -69.3 | Content text, not long reading |
| Black text on #648F81 | 5.78:1 | AA | Lc 40.2 | Non-text elements, placeholder text |
| #648F81 text on white | 3.62:1 | AA large text | Lc 63.8 | Content text, not long reading |
| #648F81 text on black | 5.78:1 | AA | Lc -37.8 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5EBE9
oklch(93.5% 0.007 174.4)
-
Step 200
200
#D0DCD8
oklch(88.4% 0.014 174.1)
-
Step 300
300
#B1C6BF
oklch(80.9% 0.025 173.7)
-
Step 400
400
#88A99E
oklch(70.7% 0.04 172.8)
-
Step 500
500 (this color)
#648F81
oklch(61.4% 0.052 172.3)
-
Step 600
600
#507E70
oklch(55.5% 0.055 173)
-
Step 700
700
#406B5D
oklch(49.2% 0.053 171.3)
-
Step 800
800
#35574C
oklch(42.7% 0.044 171.7)
-
Step 900
900
#2F4840
oklch(37.9% 0.034 172.4)
-
Step 950
950
#1C2A25
oklch(27% 0.021 170.6)
#648F81 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) | #8C8A80 | 0.053 |
| Deuteranopia (no green cones) | #858482 | 0.052 |
| Tritanopia (no blue cones) | #59908B | 0.017 |
| Achromatopsia (no color) | #868686 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #648F81
#648F81
oklch(61.4% 0.052 172.3)
- #9E7888
#9E7888
oklch(61.5% 0.052 351.7)
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 #648F81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.024
- Slate Green #658D6D ΔE 0.028
- Grey Teal #5E9B8A ΔE 0.033
- Green Grey #77926F ΔE 0.036
- Dull Teal #5F9E8F ΔE 0.042
- Sea #3C9992 ΔE 0.042
- Steel Grey #6F828A ΔE 0.046
- Medium Grey #7D7F7C ΔE 0.052
Use #648F81 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.