#649F9B
Closest named color: Cadet Blue (#5F9EA0). oklch(66.1% 0.062 190.3), rgb(100, 159, 155).
Aa
Black text reads best on this color (6.97:1).
About this color
#649F9B is a medium-light, muted teal or cyan. In OKLCH its lightness is 66%, its chroma 0.062 and its hue 190°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.010 away. Black text reads best on it, at 6.97:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.97:1 |
| White text | 3.01:1 |
Values
| HEX | #649F9B |
| RGB | rgb(100, 159, 155) |
| HSL | hsl(176, 24%, 51%) |
| OKLCH | oklch(66.1% 0.062 190.3) |
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 #649F9B | 3.01:1 | AA large text | Lc -62.1 | Content text, not long reading |
| Black text on #649F9B | 6.97:1 | AA | Lc 47.3 | Large or bold text, headings |
| #649F9B text on white | 3.01:1 | AA large text | Lc 56.7 | Large or bold text, headings |
| #649F9B text on black | 6.97:1 | AA | Lc -45.0 | 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 500.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E4ECEB
oklch(93.7% 0.009 188.1)
-
Step 200
200
#CDDDDB
oklch(88.5% 0.017 187.8)
-
Step 300
300
#ABC7C5
oklch(80.8% 0.03 191.3)
-
Step 400
400
#7EABA7
oklch(70.8% 0.049 189.3)
-
Step 500
500 (this color)
#649F9B
oklch(66.1% 0.062 190.3)
-
Step 600
600
#3F807C
oklch(55.6% 0.067 190.1)
-
Step 700
700
#306C69
oklch(49.1% 0.062 190.9)
-
Step 800
800
#295855
oklch(42.7% 0.052 189.9)
-
Step 900
900
#264946
oklch(37.8% 0.041 188.5)
-
Step 950
950
#172B29
oklch(27.1% 0.026 187.7)
#649F9B 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) | #99999B | 0.066 |
| Deuteranopia (no green cones) | #8E919C | 0.062 |
| Tritanopia (no blue cones) | #4DA29E | 0.021 |
| Achromatopsia (no color) | #959595 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #649F9B
#649F9B
oklch(66.1% 0.062 190.3)
- #B5838A
#B5838A
oklch(66.1% 0.062 9.6)
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 #649F9B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.010
- Dull Teal #5F9E8F ΔE 0.019
- Grey Teal #5E9B8A ΔE 0.027
- Sea #3C9992 ΔE 0.043
- Greyblue #77A1B5 ΔE 0.046
- Persian Green #2A9D8F ΔE 0.051
- Greeny Grey #7EA07A ΔE 0.053
- Bluegrey #85A3B2 ΔE 0.055
Use #649F9B 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.