#6D99A0
Closest named color: Cadet Blue (#5F9EA0). oklch(65.4% 0.049 208.3), rgb(109, 153, 160).
Aa
Black text reads best on this color (6.71:1).
About this color
#6D99A0 is a medium-light, muted teal or cyan. In OKLCH its lightness is 65%, its chroma 0.049 and its hue 208°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.019 away. Black text reads best on it, at 6.71:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.71:1 |
| White text | 3.12:1 |
Values
| HEX | #6D99A0 |
| RGB | rgb(109, 153, 160) |
| HSL | hsl(188, 21%, 53%) |
| OKLCH | oklch(65.4% 0.049 208.3) |
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 #6D99A0 | 3.12:1 | AA large text | Lc -63.7 | Content text, not long reading |
| Black text on #6D99A0 | 6.71:1 | AA | Lc 45.8 | Large or bold text, headings |
| #6D99A0 text on white | 3.12:1 | AA large text | Lc 58.3 | Large or bold text, headings |
| #6D99A0 text on black | 6.71:1 | AA | Lc -43.5 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEC
oklch(93.6% 0.007 208.8)
-
Step 200
200
#D0DCDE
oklch(88.6% 0.013 208.8)
-
Step 300
300
#B0C5C9
oklch(80.9% 0.024 210.4)
-
Step 400
400
#86A8AD
oklch(70.8% 0.038 207.4)
-
Step 500
500 (this color)
#6D99A0
oklch(65.4% 0.049 208.3)
-
Step 600
600
#4D7C84
oklch(55.6% 0.053 209.4)
-
Step 700
700
#3D696F
oklch(49.1% 0.05 206.8)
-
Step 800
800
#33555B
oklch(42.6% 0.041 209.9)
-
Step 900
900
#2D464A
oklch(37.6% 0.031 208.5)
-
Step 950
950
#1B292C
oklch(27% 0.02 212.4)
#6D99A0 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) | #9296A0 | 0.047 |
| Deuteranopia (no green cones) | #898FA0 | 0.043 |
| Tritanopia (no blue cones) | #5B9D9B | 0.024 |
| Achromatopsia (no color) | #929292 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D99A0
#6D99A0
oklch(65.4% 0.049 208.3)
- #AC8580
#AC8580
oklch(65.3% 0.049 26.9)
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 #6D99A0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.019
- Blue Grey #758DA3 ΔE 0.037
- Greyblue #77A1B5 ΔE 0.037
- Dull Teal #5F9E8F ΔE 0.037
- Grey Teal #5E9B8A ΔE 0.041
- Silver Lake Blue #778DA9 ΔE 0.042
- Light Slate Gray #778899 ΔE 0.047
- Bluey Grey #89A0B0 ΔE 0.047
Use #6D99A0 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.