#66988E
Closest named color: Grey Teal (#5E9B8A). oklch(64.1% 0.056 180.5), rgb(102, 152, 142).
Aa
Black text reads best on this color (6.44:1).
About this color
#66988E is a medium-light, muted teal or cyan. In OKLCH its lightness is 64%, its chroma 0.056 and its hue 181°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Teal (#5E9B8A), ΔE 0.015 away. Black text reads best on it, at 6.44:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Grey Teal (#5E9B8A) |
| Black text | 6.44:1 |
| White text | 3.25:1 |
Values
| HEX | #66988E |
| RGB | rgb(102, 152, 142) |
| HSL | hsl(168, 20%, 50%) |
| OKLCH | oklch(64.1% 0.056 180.5) |
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 #66988E | 3.25:1 | AA large text | Lc -65.3 | Content text, not long reading |
| Black text on #66988E | 6.44:1 | AA | Lc 44.2 | Non-text elements, placeholder text |
| #66988E text on white | 3.25:1 | AA large text | Lc 59.8 | Large or bold text, headings |
| #66988E text on black | 6.44:1 | AA | Lc -41.9 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5ECEA
oklch(93.7% 0.008 177.3)
-
Step 200
200
#CFDDD9
oklch(88.6% 0.016 177)
-
Step 300
300
#AFC7C1
oklch(81% 0.027 178.9)
-
Step 400
400
#83AAA2
oklch(70.7% 0.044 181)
-
Step 500
500 (this color)
#66988E
oklch(64.1% 0.056 180.5)
-
Step 600
600
#497F75
oklch(55.6% 0.06 180.8)
-
Step 700
700
#396B62
oklch(49% 0.056 180.9)
-
Step 800
800
#305850
oklch(42.8% 0.048 179.6)
-
Step 900
900
#2B4842
oklch(37.7% 0.037 179.7)
-
Step 950
950
#1A2A27
oklch(27% 0.022 181.6)
#66988E 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) | #94928E | 0.060 |
| Deuteranopia (no green cones) | #8B8C8F | 0.056 |
| Tritanopia (no blue cones) | #579A95 | 0.016 |
| Achromatopsia (no color) | #8E8E8E | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66988E
#66988E
oklch(64.1% 0.056 180.5)
- #AA7F8B
#AA7F8B
oklch(64.2% 0.055 0.4)
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 #66988E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Teal #5E9B8A ΔE 0.015
- Dull Teal #5F9E8F ΔE 0.018
- Cadet Blue #5F9EA0 ΔE 0.027
- Sea #3C9992 ΔE 0.037
- Dusty Teal #4C9085 ΔE 0.039
- Green Grey #77926F ΔE 0.043
- Persian Green #2A9D8F ΔE 0.047
- Slate Green #658D6D ΔE 0.049
Use #66988E 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.