#659598
Closest named color: Cadet Blue (#5F9EA0). oklch(63.7% 0.052 200.9), rgb(101, 149, 152).
Aa
Black text reads best on this color (6.30:1).
About this color
#659598 is a medium-light, muted teal or cyan. In OKLCH its lightness is 64%, its chroma 0.052 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.025 away. Black text reads best on it, at 6.30:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.30:1 |
| White text | 3.33:1 |
Values
| HEX | #659598 |
| RGB | rgb(101, 149, 152) |
| HSL | hsl(184, 20%, 50%) |
| OKLCH | oklch(63.7% 0.052 200.9) |
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 #659598 | 3.33:1 | AA large text | Lc -66.1 | Content text, not long reading |
| Black text on #659598 | 6.30:1 | AA | Lc 43.4 | Non-text elements, placeholder text |
| #659598 text on white | 3.33:1 | AA large text | Lc 60.7 | Content text, not long reading |
| #659598 text on black | 6.30:1 | AA | Lc -41.0 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEC
oklch(93.6% 0.007 208.8)
-
Step 200
200
#CFDCDD
oklch(88.5% 0.014 202.4)
-
Step 300
300
#AFC6C7
oklch(81% 0.025 199.9)
-
Step 400
400
#83A9AB
oklch(70.8% 0.041 200.3)
-
Step 500
500 (this color)
#659598
oklch(63.7% 0.052 200.9)
-
Step 600
600
#497D81
oklch(55.5% 0.056 202)
-
Step 700
700
#3A6A6D
oklch(49.2% 0.052 200.8)
-
Step 800
800
#305659
oklch(42.6% 0.044 202.2)
-
Step 900
900
#2B4749
oklch(37.7% 0.034 201.6)
-
Step 950
950
#1A2A2B
oklch(27.1% 0.021 200.9)
#659598 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) | #8E9198 | 0.052 |
| Deuteranopia (no green cones) | #858A98 | 0.049 |
| Tritanopia (no blue cones) | #529896 | 0.021 |
| Achromatopsia (no color) | #8D8D8D | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #659598
#659598
oklch(63.7% 0.052 200.9)
- #A97F7E
#A97F7E
oklch(63.7% 0.052 20.2)
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 #659598, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.025
- Grey Teal #5E9B8A ΔE 0.033
- Dull Teal #5F9E8F ΔE 0.034
- Blue Grey #758DA3 ΔE 0.038
- Sea #3C9992 ΔE 0.040
- Light Slate Gray #778899 ΔE 0.042
- Dusty Teal #4C9085 ΔE 0.042
- Silver Lake Blue #778DA9 ΔE 0.046
Use #659598 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.