#659591
Closest named color: Grey Teal (#5E9B8A). oklch(63.4% 0.052 189.4), rgb(101, 149, 145).
Aa
Black text reads best on this color (6.26:1).
About this color
#659591 is a medium-light, muted teal or cyan. In OKLCH its lightness is 63%, its chroma 0.052 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Teal (#5E9B8A), ΔE 0.024 away. Black text reads best on it, at 6.26:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Grey Teal (#5E9B8A) |
| Black text | 6.26:1 |
| White text | 3.35:1 |
Values
| HEX | #659591 |
| RGB | rgb(101, 149, 145) |
| HSL | hsl(175, 19%, 49%) |
| OKLCH | oklch(63.4% 0.052 189.4) |
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 #659591 | 3.35:1 | AA large text | Lc -66.4 | Content text, not long reading |
| Black text on #659591 | 6.26:1 | AA | Lc 43.1 | Non-text elements, placeholder text |
| #659591 text on white | 3.35:1 | AA large text | Lc 60.9 | Content text, not long reading |
| #659591 text on black | 6.26:1 | AA | Lc -40.8 | 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
#CFDCDB
oklch(88.4% 0.014 191.4)
-
Step 300
300
#AFC6C4
oklch(80.9% 0.025 190.3)
-
Step 400
400
#84A9A6
oklch(70.7% 0.041 190.1)
-
Step 500
500 (this color)
#659591
oklch(63.4% 0.052 189.4)
-
Step 600
600
#4A7E7A
oklch(55.5% 0.056 189.4)
-
Step 700
700
#3B6A67
oklch(49% 0.052 190.3)
-
Step 800
800
#315754
oklch(42.7% 0.044 189.2)
-
Step 900
900
#2C4845
oklch(37.8% 0.034 187.3)
-
Step 950
950
#1A2A29
oklch(27% 0.022 191)
#659591 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) | #909091 | 0.056 |
| Deuteranopia (no green cones) | #878992 | 0.053 |
| Tritanopia (no blue cones) | #549794 | 0.017 |
| Achromatopsia (no color) | #8C8C8C | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #659591
#659591
oklch(63.4% 0.052 189.4)
- #A77E84
#A77E84
oklch(63.5% 0.051 8.9)
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 #659591, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Teal #5E9B8A ΔE 0.024
- Dull Teal #5F9E8F ΔE 0.028
- Cadet Blue #5F9EA0 ΔE 0.028
- Dusty Teal #4C9085 ΔE 0.036
- Sea #3C9992 ΔE 0.037
- Blue Grey #758DA3 ΔE 0.046
- Light Slate Gray #778899 ΔE 0.048
- Green Grey #77926F ΔE 0.049
Use #659591 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.