#659FAF
Closest named color: Greyblue (#77A1B5). oklch(66.9% 0.065 217.2), rgb(101, 159, 175).
Aa
Black text reads best on this color (7.13:1).
About this color
#659FAF is a medium-light, muted teal or cyan. In OKLCH its lightness is 67%, its chroma 0.065 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.023 away. Black text reads best on it, at 7.13:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.13:1 |
| White text | 2.94:1 |
Values
| HEX | #659FAF |
| RGB | rgb(101, 159, 175) |
| HSL | hsl(193, 32%, 54%) |
| OKLCH | oklch(66.9% 0.065 217.2) |
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 #659FAF | 2.94:1 | Fails | Lc -61.2 | Content text, not long reading |
| Black text on #659FAF | 7.13:1 | AAA | Lc 48.2 | Large or bold text, headings |
| #659FAF text on white | 2.94:1 | Fails | Lc 55.8 | Large or bold text, headings |
| #659FAF text on black | 7.13:1 | AAA | Lc -45.9 | 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
#E3EBEE
oklch(93.5% 0.009 222.1)
-
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
#7DA9B5
oklch(70.7% 0.05 216.4)
-
Step 500
500 (this color)
#659FAF
oklch(66.9% 0.065 217.2)
-
Step 600
600
#3D7E8E
oklch(55.7% 0.07 216)
-
Step 700
700
#2F6A79
oklch(49.2% 0.065 216.9)
-
Step 800
800
#285662
oklch(42.6% 0.054 217.1)
-
Step 900
900
#254750
oklch(37.6% 0.042 216.9)
-
Step 950
950
#172A2F
oklch(27.1% 0.026 216.3)
#659FAF 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) | #949BB0 | 0.057 |
| Deuteranopia (no green cones) | #8993AF | 0.052 |
| Tritanopia (no blue cones) | #45A5A4 | 0.039 |
| Achromatopsia (no color) | #969696 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #659FAF
#659FAF
oklch(66.9% 0.065 217.2)
- #B98779
#B98779
oklch(66.9% 0.065 36.2)
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 #659FAF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.023
- Cadet Blue #5F9EA0 ΔE 0.024
- Bluegrey #85A3B2 ΔE 0.040
- Bluey Grey #89A0B0 ΔE 0.043
- Cool Gray #8D99AE ΔE 0.049
- Dull Teal #5F9E8F ΔE 0.049
- Blue Grey #758DA3 ΔE 0.050
- Silver Lake Blue #778DA9 ΔE 0.051
Use #659FAF 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.