#659D8B
Closest named color: Dull Teal (#5F9E8F). oklch(65.2% 0.065 171.9), rgb(101, 157, 139).
Aa
Black text reads best on this color (6.74:1).
About this color
#659D8B is a medium-light, muted teal or cyan. In OKLCH its lightness is 65%, its chroma 0.065 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Teal (#5F9E8F), ΔE 0.007 away. Black text reads best on it, at 6.74:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Dull Teal (#5F9E8F) |
| Black text | 6.74:1 |
| White text | 3.11:1 |
Values
| HEX | #659D8B |
| RGB | rgb(101, 157, 139) |
| HSL | hsl(161, 22%, 51%) |
| OKLCH | oklch(65.2% 0.065 171.9) |
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 #659D8B | 3.11:1 | AA large text | Lc -63.4 | Content text, not long reading |
| Black text on #659D8B | 6.74:1 | AA | Lc 46.0 | Large or bold text, headings |
| #659D8B text on white | 3.11:1 | AA large text | Lc 58.0 | Large or bold text, headings |
| #659D8B text on black | 6.74:1 | AA | Lc -43.7 | 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
#CEDDD8
oklch(88.5% 0.017 174)
-
Step 300
300
#ADC8BE
oklch(81% 0.032 171.1)
-
Step 400
400
#80AB9D
oklch(70.6% 0.051 172.8)
-
Step 500
500 (this color)
#659D8B
oklch(65.2% 0.065 171.9)
-
Step 600
600
#43816E
oklch(55.6% 0.072 171.5)
-
Step 700
700
#356D5C
oklch(49.1% 0.066 171.4)
-
Step 800
800
#2C594B
oklch(42.7% 0.056 171.2)
-
Step 900
900
#28493F
oklch(37.7% 0.043 172.5)
-
Step 950
950
#182B25
oklch(27% 0.027 172.2)
#659D8B 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) | #9A968A | 0.068 |
| Deuteranopia (no green cones) | #908F8C | 0.065 |
| Tritanopia (no blue cones) | #559E98 | 0.022 |
| Achromatopsia (no color) | #929292 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #659D8B
#659D8B
oklch(65.2% 0.065 171.9)
- #B07F94
#B07F94
oklch(65.1% 0.067 351.7)
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 #659D8B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Teal #5F9E8F ΔE 0.007
- Grey Teal #5E9B8A ΔE 0.010
- Cadet Blue #5F9EA0 ΔE 0.030
- Greeny Grey #7EA07A ΔE 0.039
- Sea #3C9992 ΔE 0.040
- Green Grey #77926F ΔE 0.043
- Persian Green #2A9D8F ΔE 0.045
- Grey Green #86A17D ΔE 0.046
Use #659D8B 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.