#6D99A3
Closest named color: Cadet Blue (#5F9EA0). oklch(65.5% 0.05 213.3), rgb(109, 153, 163).
Aa
Black text reads best on this color (6.73:1).
About this color
#6D99A3 is a medium-light, muted teal or cyan. In OKLCH its lightness is 65%, its chroma 0.050 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.021 away. Black text reads best on it, at 6.73:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.73:1 |
| White text | 3.11:1 |
Values
| HEX | #6D99A3 |
| RGB | rgb(109, 153, 163) |
| HSL | hsl(191, 23%, 53%) |
| OKLCH | oklch(65.5% 0.05 213.3) |
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 #6D99A3 | 3.11:1 | AA large text | Lc -63.5 | Content text, not long reading |
| Black text on #6D99A3 | 6.73:1 | AA | Lc 45.9 | Large or bold text, headings |
| #6D99A3 text on white | 3.11:1 | AA large text | Lc 58.1 | Large or bold text, headings |
| #6D99A3 text on black | 6.73:1 | AA | Lc -43.6 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#D0DCDE
oklch(88.6% 0.013 208.8)
-
Step 300
300
#B0C5CA
oklch(80.9% 0.024 213.6)
-
Step 400
400
#85A7AF
oklch(70.6% 0.039 213.6)
-
Step 500
500 (this color)
#6D99A3
oklch(65.5% 0.05 213.3)
-
Step 600
600
#4C7C86
oklch(55.6% 0.054 212.3)
-
Step 700
700
#3D6872
oklch(49% 0.05 214.2)
-
Step 800
800
#33555D
oklch(42.7% 0.042 214.3)
-
Step 900
900
#2D464C
oklch(37.6% 0.032 214.4)
-
Step 950
950
#1B292C
oklch(27% 0.02 212.4)
#6D99A3 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) | #9196A4 | 0.046 |
| Deuteranopia (no green cones) | #888FA3 | 0.042 |
| Tritanopia (no blue cones) | #5A9D9C | 0.027 |
| Achromatopsia (no color) | #929292 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D99A3
#6D99A3
oklch(65.5% 0.05 213.3)
- #AD867D
#AD867D
oklch(65.5% 0.05 33.3)
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 #6D99A3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.021
- Greyblue #77A1B5 ΔE 0.034
- Blue Grey #758DA3 ΔE 0.035
- Silver Lake Blue #778DA9 ΔE 0.039
- Dull Teal #5F9E8F ΔE 0.042
- Grey Teal #5E9B8A ΔE 0.045
- Bluey Grey #89A0B0 ΔE 0.045
- Cool Gray #8D99AE ΔE 0.045
Use #6D99A3 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.