#6D99C4
Closest named color: Faded Blue (#658CBB). oklch(66.8% 0.08 248.5), rgb(109, 153, 196).
Aa
Black text reads best on this color (7.00:1).
About this color
#6D99C4 is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.080 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.038 away. Black text reads best on it, at 7.00:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 7.00:1 |
| White text | 2.99:1 |
Values
| HEX | #6D99C4 |
| RGB | rgb(109, 153, 196) |
| HSL | hsl(210, 42%, 60%) |
| OKLCH | oklch(66.8% 0.08 248.5) |
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 #6D99C4 | 2.99:1 | Fails | Lc -61.9 | Content text, not long reading |
| Black text on #6D99C4 | 7.00:1 | AAA | Lc 47.5 | Large or bold text, headings |
| #6D99C4 text on white | 2.99:1 | Fails | Lc 56.6 | Large or bold text, headings |
| #6D99C4 text on black | 7.00:1 | AAA | Lc -45.2 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CEDBE7
oklch(88.5% 0.022 245.9)
-
Step 300
300
#AEC3D9
oklch(80.8% 0.039 249.5)
-
Step 400
400
#82A4C7
oklch(70.6% 0.064 249.5)
-
Step 500
500 (this color)
#6D99C4
oklch(66.8% 0.08 248.5)
-
Step 600
600
#4877A4
oklch(55.5% 0.087 248.7)
-
Step 700
700
#39648D
oklch(49.1% 0.082 248.8)
-
Step 800
800
#305272
oklch(42.7% 0.067 248.2)
-
Step 900
900
#2B445C
oklch(37.7% 0.052 248.4)
-
Step 950
950
#192836
oklch(27% 0.033 247.4)
#6D99C4 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) | #889AC6 | 0.034 |
| Deuteranopia (no green cones) | #7D91C3 | 0.027 |
| Tritanopia (no blue cones) | #4AA3A7 | 0.069 |
| Achromatopsia (no color) | #959595 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D99C4
#6D99C4
oklch(66.8% 0.08 248.5)
- #B58C5D
#B58C5D
oklch(66.8% 0.08 69.5)
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 #6D99C4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.038
- Greyblue #77A1B5 ΔE 0.039
- Silver Lake Blue #778DA9 ΔE 0.045
- Cool Gray #8D99AE ΔE 0.049
- Blue Grey #758DA3 ΔE 0.051
- Bluey Grey #89A0B0 ΔE 0.053
- Bluegrey #85A3B2 ΔE 0.054
- Cadet Blue #5F9EA0 ΔE 0.064
Use #6D99C4 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.