#6B99DA
Closest named color: Cornflower Blue (#6495ED). oklch(67.7% 0.109 257.1), rgb(107, 153, 218).
Aa
Black text reads best on this color (7.19:1).
About this color
#6B99DA is a medium-light, moderately saturated blue. In OKLCH its lightness is 68%, its chroma 0.109 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.034 away. Black text reads best on it, at 7.19:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.19:1 |
| White text | 2.91:1 |
Values
| HEX | #6B99DA |
| RGB | rgb(107, 153, 218) |
| HSL | hsl(215, 60%, 64%) |
| OKLCH | oklch(67.7% 0.109 257.1) |
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 #6B99DA | 2.91:1 | Fails | Lc -60.8 | Content text, not long reading |
| Black text on #6B99DA | 7.19:1 | AAA | Lc 48.6 | Large or bold text, headings |
| #6B99DA text on white | 2.91:1 | Fails | Lc 55.5 | Large or bold text, headings |
| #6B99DA text on black | 7.19:1 | AAA | Lc -46.3 | 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 400.
-
Step 50
50
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EBF7
oklch(93.7% 0.019 255.5)
-
Step 200
200
#CADBF3
oklch(88.6% 0.038 257)
-
Step 300
300
#A5C3ED
oklch(81% 0.068 256.8)
-
Step 400
400 (this color)
#6B99DA
oklch(67.7% 0.109 257.1)
-
Step 500
500
#4F8ADC
oklch(63.2% 0.139 257)
-
Step 600
600
#3172CA
oklch(55.6% 0.152 257)
-
Step 700
700
#245FAF
oklch(49.1% 0.141 257.2)
-
Step 800
800
#1F4E8D
oklch(42.7% 0.116 256.9)
-
Step 900
900
#1F4171
oklch(37.6% 0.092 257.4)
-
Step 950
950
#132742
oklch(27.1% 0.057 256.4)
#6B99DA 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) | #809DDD | 0.028 |
| Deuteranopia (no green cones) | #7292D9 | 0.019 |
| Tritanopia (no blue cones) | #34A7B0 | 0.096 |
| Achromatopsia (no color) | #979797 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B99DA
#6B99DA
oklch(67.7% 0.109 257.1)
- #BD8E42
#BD8E42
oklch(67.7% 0.109 77)
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 #6B99DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.034
- Chefchaouen Blue #4895EF ΔE 0.048
- Faded Blue #658CBB ΔE 0.054
- Dark Sky Blue #448EE4 ΔE 0.054
- Soft Blue #6488EA ΔE 0.057
- Perrywinkle #8F8CE7 ΔE 0.060
- Greyblue #77A1B5 ΔE 0.067
- Periwinkle Blue #8F99FB ΔE 0.068
Use #6B99DA 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.