#648D8B
Closest named color: Dusty Teal (#4C9085). oklch(61.3% 0.045 192.2), rgb(100, 141, 139).
Aa
Black text reads best on this color (5.72:1).
About this color
#648D8B is a medium-dark, muted teal or cyan. In OKLCH its lightness is 61%, its chroma 0.045 and its hue 192°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.029 away. Black text reads best on it, at 5.72:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.72:1 |
| White text | 3.66:1 |
Values
| HEX | #648D8B |
| RGB | rgb(100, 141, 139) |
| HSL | hsl(177, 17%, 47%) |
| OKLCH | oklch(61.3% 0.045 192.2) |
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 #648D8B | 3.66:1 | AA large text | Lc -69.7 | Content text, not long reading |
| Black text on #648D8B | 5.72:1 | AA | Lc 39.8 | Non-text elements, placeholder text |
| #648D8B text on white | 3.66:1 | AA large text | Lc 64.2 | Content text, not long reading |
| #648D8B text on black | 5.72:1 | AA | Lc -37.4 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEB
oklch(93.6% 0.006 197)
-
Step 200
200
#D0DCDB
oklch(88.5% 0.013 190.9)
-
Step 300
300
#B1C5C4
oklch(80.8% 0.022 193.1)
-
Step 400
400
#88A8A6
oklch(70.7% 0.035 191.7)
-
Step 500
500 (this color)
#648D8B
oklch(61.3% 0.045 192.2)
-
Step 600
600
#507D7B
oklch(55.7% 0.05 192.3)
-
Step 700
700
#416967
oklch(49.1% 0.045 191.8)
-
Step 800
800
#365654
oklch(42.8% 0.038 190.8)
-
Step 900
900
#2F4746
oklch(37.8% 0.03 192.7)
-
Step 950
950
#1C2929
oklch(26.9% 0.018 196.1)
#648D8B 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) | #88898B | 0.048 |
| Deuteranopia (no green cones) | #80838B | 0.044 |
| Tritanopia (no blue cones) | #568F8C | 0.015 |
| Achromatopsia (no color) | #858585 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #648D8B
#648D8B
oklch(61.3% 0.045 192.2)
- #9D797D
#9D797D
oklch(61.2% 0.045 11)
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 #648D8B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.029
- Steel Grey #6F828A ΔE 0.033
- Steel #738595 ΔE 0.037
- Light Slate Gray #778899 ΔE 0.039
- Grey Teal #5E9B8A ΔE 0.042
- Slate Gray #708090 ΔE 0.043
- Sea #3C9992 ΔE 0.045
- Blue Grey #758DA3 ΔE 0.045
Use #648D8B 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.