#66938C
Closest named color: Grey Teal (#5E9B8A). oklch(62.9% 0.05 184), rgb(102, 147, 140).
Aa
Black text reads best on this color (6.11:1).
About this color
#66938C is a medium-light, muted teal or cyan. In OKLCH its lightness is 63%, its chroma 0.050 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Teal (#5E9B8A), ΔE 0.026 away. Black text reads best on it, at 6.11:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Grey Teal (#5E9B8A) |
| Black text | 6.11:1 |
| White text | 3.43:1 |
Values
| HEX | #66938C |
| RGB | rgb(102, 147, 140) |
| HSL | hsl(171, 18%, 49%) |
| OKLCH | oklch(62.9% 0.05 184) |
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 #66938C | 3.43:1 | AA large text | Lc -67.3 | Content text, not long reading |
| Black text on #66938C | 6.11:1 | AA | Lc 42.3 | Non-text elements, placeholder text |
| #66938C text on white | 3.43:1 | AA large text | Lc 61.8 | Content text, not long reading |
| #66938C text on black | 6.11:1 | AA | Lc -39.9 | 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
#E5EBEA
oklch(93.5% 0.007 185.3)
-
Step 200
200
#D0DCDA
oklch(88.5% 0.013 185.1)
-
Step 300
300
#B0C6C2
oklch(80.9% 0.025 183.6)
-
Step 400
400
#86A9A3
oklch(70.7% 0.039 183.6)
-
Step 500
500 (this color)
#66938C
oklch(62.9% 0.05 184)
-
Step 600
600
#4D7E77
oklch(55.6% 0.054 184.3)
-
Step 700
700
#3E6A64
oklch(49% 0.05 184.7)
-
Step 800
800
#335751
oklch(42.8% 0.043 182.5)
-
Step 900
900
#2D4743
oklch(37.6% 0.033 183.9)
-
Step 950
950
#1B2A27
oklch(27% 0.021 180.8)
#66938C 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) | #8F8E8C | 0.054 |
| Deuteranopia (no green cones) | #86888D | 0.050 |
| Tritanopia (no blue cones) | #589591 | 0.015 |
| Achromatopsia (no color) | #8A8A8A | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66938C
#66938C
oklch(62.9% 0.05 184)
- #A47C85
#A47C85
oklch(62.8% 0.051 3.7)
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 #66938C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Teal #5E9B8A ΔE 0.026
- Dull Teal #5F9E8F ΔE 0.031
- Dusty Teal #4C9085 ΔE 0.032
- Cadet Blue #5F9EA0 ΔE 0.036
- Sea #3C9992 ΔE 0.038
- Green Grey #77926F ΔE 0.043
- Slate Green #658D6D ΔE 0.044
- Light Slate Gray #778899 ΔE 0.047
Use #66938C 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.