#6689DB
Closest named color: Soft Blue (#6488EA). oklch(64.1% 0.13 265.4), rgb(102, 137, 219).
Aa
Black text reads best on this color (6.16:1).
About this color
#6689DB is a medium-light, moderately saturated blue. In OKLCH its lightness is 64%, its chroma 0.130 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.023 away. Black text reads best on it, at 6.16:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 6.16:1 |
| White text | 3.40:1 |
Values
| HEX | #6689DB |
| RGB | rgb(102, 137, 219) |
| HSL | hsl(222, 62%, 63%) |
| OKLCH | oklch(64.1% 0.13 265.4) |
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 #6689DB | 3.40:1 | AA large text | Lc -66.9 | Content text, not long reading |
| Black text on #6689DB | 6.16:1 | AA | Lc 42.7 | Non-text elements, placeholder text |
| #6689DB text on white | 3.40:1 | AA large text | Lc 61.4 | Content text, not long reading |
| #6689DB text on black | 6.16:1 | AA | Lc -40.3 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF7
oklch(93.6% 0.019 266)
-
Step 200
200
#CED9F1
oklch(88.4% 0.035 266)
-
Step 300
300
#ADC1EB
oklch(81% 0.064 265)
-
Step 400
400
#829FE0
oklch(70.6% 0.101 265.5)
-
Step 500
500 (this color)
#6689DB
oklch(64.1% 0.13 265.4)
-
Step 600
600
#4B6EC5
oklch(55.6% 0.141 265.6)
-
Step 700
700
#3C5CAA
oklch(49.1% 0.13 265.2)
-
Step 800
800
#324B8A
oklch(42.7% 0.109 265.7)
-
Step 900
900
#2C3F6E
oklch(37.6% 0.084 265.9)
-
Step 950
950
#1A2541
oklch(27% 0.055 266.6)
#6689DB 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) | #6891DE | 0.022 |
| Deuteranopia (no green cones) | #5A86D9 | 0.017 |
| Tritanopia (no blue cones) | #289BA7 | 0.117 |
| Achromatopsia (no color) | #8B8B8B | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6689DB
#6689DB
oklch(64.1% 0.13 265.4)
- #B08507
#B08507
oklch(64.1% 0.13 85.3)
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 #6689DB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.023
- Dark Sky Blue #448EE4 ΔE 0.034
- Cornflower Blue #6495ED ΔE 0.037
- Chefchaouen Blue #4895EF ΔE 0.044
- Faded Blue #658CBB ΔE 0.052
- Perrywinkle #8F8CE7 ΔE 0.058
- Cornflower #6A79F7 ΔE 0.063
- Cool Blue #4984B8 ΔE 0.064
Use #6689DB 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.