#659DAE
Closest named color: Cadet Blue (#5F9EA0). oklch(66.4% 0.064 219.1), rgb(101, 157, 174).
Aa
Black text reads best on this color (6.98:1).
About this color
#659DAE is a medium-light, muted teal or cyan. In OKLCH its lightness is 66%, its chroma 0.064 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.024 away. Black text reads best on it, at 6.98:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.98:1 |
| White text | 3.00:1 |
Values
| HEX | #659DAE |
| RGB | rgb(101, 157, 174) |
| HSL | hsl(194, 31%, 54%) |
| OKLCH | oklch(66.4% 0.064 219.1) |
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 #659DAE | 3.00:1 | AA large text | Lc -62.0 | Content text, not long reading |
| Black text on #659DAE | 6.98:1 | AA | Lc 47.4 | Large or bold text, headings |
| #659DAE text on white | 3.00:1 | AA large text | Lc 56.7 | Large or bold text, headings |
| #659DAE text on black | 6.98:1 | AA | Lc -45.1 | Large or bold text, headings |
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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CDDCE1
oklch(88.5% 0.018 219.7)
-
Step 300
300
#ABC6CE
oklch(80.9% 0.031 217.5)
-
Step 400
400
#7EA9B6
oklch(70.8% 0.05 218.4)
-
Step 500
500 (this color)
#659DAE
oklch(66.4% 0.064 219.1)
-
Step 600
600
#3F7D8F
oklch(55.6% 0.07 219.2)
-
Step 700
700
#31697A
oklch(49% 0.065 220.4)
-
Step 800
800
#295663
oklch(42.7% 0.054 219.1)
-
Step 900
900
#264751
oklch(37.7% 0.042 219.5)
-
Step 950
950
#172A2F
oklch(27.1% 0.026 216.3)
#659DAE 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) | #929AAF | 0.055 |
| Deuteranopia (no green cones) | #8791AE | 0.050 |
| Tritanopia (no blue cones) | #46A3A2 | 0.040 |
| Achromatopsia (no color) | #959595 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #659DAE
#659DAE
oklch(66.4% 0.064 219.1)
- #B68676
#B68676
oklch(66.3% 0.064 39.2)
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 #659DAE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.024
- Greyblue #77A1B5 ΔE 0.026
- Bluegrey #85A3B2 ΔE 0.043
- Bluey Grey #89A0B0 ΔE 0.044
- Blue Grey #758DA3 ΔE 0.045
- Silver Lake Blue #778DA9 ΔE 0.046
- Cool Gray #8D99AE ΔE 0.048
- Dull Teal #5F9E8F ΔE 0.049
Use #659DAE 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.