#659FB1
Closest named color: Greyblue (#77A1B5). oklch(66.9% 0.066 219.6), rgb(101, 159, 177).
Aa
Black text reads best on this color (7.14:1).
About this color
#659FB1 is a medium-light, muted teal or cyan. In OKLCH its lightness is 67%, its chroma 0.066 and its hue 220°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.022 away. Black text reads best on it, at 7.14:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.14:1 |
| White text | 2.93:1 |
Values
| HEX | #659FB1 |
| RGB | rgb(101, 159, 177) |
| HSL | hsl(194, 33%, 55%) |
| OKLCH | oklch(66.9% 0.066 219.6) |
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 #659FB1 | 2.93:1 | Fails | Lc -61.1 | Content text, not long reading |
| Black text on #659FB1 | 7.14:1 | AAA | Lc 48.3 | Large or bold text, headings |
| #659FB1 text on white | 2.93:1 | Fails | Lc 55.8 | Large or bold text, headings |
| #659FB1 text on black | 7.14:1 | AAA | Lc -46.0 | 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 400.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#C9DDE4
oklch(88.5% 0.023 220.8)
-
Step 300
300
#A4C7D3
oklch(80.8% 0.041 220.6)
-
Step 400
400 (this color)
#659FB1
oklch(66.9% 0.066 219.6)
-
Step 500
500
#4695AC
oklch(62.9% 0.084 219.6)
-
Step 600
600
#207F98
oklch(55.5% 0.092 220.1)
-
Step 700
700
#0F6C82
oklch(49.2% 0.085 219.3)
-
Step 800
800
#135869
oklch(42.8% 0.07 218.7)
-
Step 900
900
#194856
oklch(37.6% 0.055 220.9)
-
Step 950
950
#102A32
oklch(26.8% 0.035 220.6)
#659FB1 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) | #949CB2 | 0.057 |
| Deuteranopia (no green cones) | #8893B1 | 0.051 |
| Tritanopia (no blue cones) | #44A5A5 | 0.041 |
| Achromatopsia (no color) | #979797 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #659FB1
#659FB1
oklch(66.9% 0.066 219.6)
- #B98877
#B98877
oklch(67% 0.065 40)
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 #659FB1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.022
- Cadet Blue #5F9EA0 ΔE 0.027
- Bluegrey #85A3B2 ΔE 0.040
- Bluey Grey #89A0B0 ΔE 0.042
- Cool Gray #8D99AE ΔE 0.048
- Blue Grey #758DA3 ΔE 0.050
- Silver Lake Blue #778DA9 ΔE 0.051
- Dull Teal #5F9E8F ΔE 0.052
Use #659FB1 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.