#659B8D
Closest named color: Grey Teal (#5E9B8A). oklch(64.7% 0.061 176.1), rgb(101, 155, 141).
Aa
Black text reads best on this color (6.62:1).
About this color
#659B8D is a medium-light, muted teal or cyan. In OKLCH its lightness is 65%, its chroma 0.061 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Teal (#5E9B8A), ΔE 0.009 away. Black text reads best on it, at 6.62:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Grey Teal (#5E9B8A) |
| Black text | 6.62:1 |
| White text | 3.16:1 |
Values
| HEX | #659B8D |
| RGB | rgb(101, 155, 141) |
| HSL | hsl(164, 21%, 50%) |
| OKLCH | oklch(64.7% 0.061 176.1) |
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 #659B8D | 3.16:1 | AA large text | Lc -64.2 | Content text, not long reading |
| Black text on #659B8D | 6.62:1 | AA | Lc 45.3 | Large or bold text, headings |
| #659B8D text on white | 3.16:1 | AA large text | Lc 58.8 | Large or bold text, headings |
| #659B8D text on black | 6.62:1 | AA | Lc -43.0 | 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
#E4ECE9
oklch(93.6% 0.009 171.8)
-
Step 200
200
#CEDDD9
oklch(88.5% 0.017 178.2)
-
Step 300
300
#ADC7C0
oklch(80.8% 0.03 177.5)
-
Step 400
400
#81AB9F
oklch(70.7% 0.049 175.4)
-
Step 500
500 (this color)
#659B8D
oklch(64.7% 0.061 176.1)
-
Step 600
600
#458072
oklch(55.5% 0.066 176.6)
-
Step 700
700
#366C5F
oklch(49% 0.062 176)
-
Step 800
800
#2E584E
oklch(42.6% 0.05 176.6)
-
Step 900
900
#294941
oklch(37.8% 0.041 176.2)
-
Step 950
950
#192B26
oklch(27.2% 0.026 174.9)
#659B8D 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) | #97958C | 0.064 |
| Deuteranopia (no green cones) | #8E8E8E | 0.061 |
| Tritanopia (no blue cones) | #559C97 | 0.019 |
| Achromatopsia (no color) | #919191 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #659B8D
#659B8D
oklch(64.7% 0.061 176.1)
- #AE7F8F
#AE7F8F
oklch(64.8% 0.062 356.8)
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 #659B8D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Teal #5E9B8A ΔE 0.009
- Dull Teal #5F9E8F ΔE 0.009
- Cadet Blue #5F9EA0 ΔE 0.027
- Sea #3C9992 ΔE 0.037
- Green Grey #77926F ΔE 0.043
- Greeny Grey #7EA07A ΔE 0.044
- Dusty Teal #4C9085 ΔE 0.044
- Persian Green #2A9D8F ΔE 0.045
Use #659B8D 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.