#649B91
Closest named color: Dull Teal (#5F9E8F). oklch(64.8% 0.06 181.6), rgb(100, 155, 145).
Aa
Black text reads best on this color (6.63:1).
About this color
#649B91 is a medium-light, muted teal or cyan. In OKLCH its lightness is 65%, its chroma 0.060 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Teal (#5F9E8F), ΔE 0.011 away. Black text reads best on it, at 6.63:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Dull Teal (#5F9E8F) |
| Black text | 6.63:1 |
| White text | 3.16:1 |
Values
| HEX | #649B91 |
| RGB | rgb(100, 155, 145) |
| HSL | hsl(169, 22%, 50%) |
| OKLCH | oklch(64.8% 0.06 181.6) |
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 #649B91 | 3.16:1 | AA large text | Lc -64.1 | Content text, not long reading |
| Black text on #649B91 | 6.63:1 | AA | Lc 45.4 | Large or bold text, headings |
| #649B91 text on white | 3.16:1 | AA large text | Lc 58.7 | Large or bold text, headings |
| #649B91 text on black | 6.63:1 | AA | Lc -43.1 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECEA
oklch(93.6% 0.009 179.6)
-
Step 200
200
#CEDDDA
oklch(88.5% 0.017 182.7)
-
Step 300
300
#ADC7C2
oklch(80.9% 0.029 182.7)
-
Step 400
400
#80ABA2
oklch(70.7% 0.048 180.5)
-
Step 500
500 (this color)
#649B91
oklch(64.8% 0.06 181.6)
-
Step 600
600
#438076
oklch(55.6% 0.066 182)
-
Step 700
700
#356C63
oklch(49.1% 0.06 181.8)
-
Step 800
800
#2C5851
oklch(42.7% 0.051 182.3)
-
Step 900
900
#294943
oklch(37.9% 0.039 180.8)
-
Step 950
950
#182B27
oklch(27.1% 0.026 179.4)
#649B91 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) | #969591 | 0.064 |
| Deuteranopia (no green cones) | #8D8E92 | 0.061 |
| Tritanopia (no blue cones) | #529D98 | 0.018 |
| Achromatopsia (no color) | #919191 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #649B91
#649B91
oklch(64.8% 0.06 181.6)
- #AF808C
#AF808C
oklch(65% 0.06 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 #649B91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Teal #5F9E8F ΔE 0.011
- Grey Teal #5E9B8A ΔE 0.013
- Cadet Blue #5F9EA0 ΔE 0.021
- Sea #3C9992 ΔE 0.036
- Dusty Teal #4C9085 ΔE 0.044
- Persian Green #2A9D8F ΔE 0.045
- Green Grey #77926F ΔE 0.048
- Greeny Grey #7EA07A ΔE 0.048
Use #649B91 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.