#6685BC
Closest named color: Faded Blue (#658CBB). oklch(61.6% 0.091 261.5), rgb(102, 133, 188).
Aa
Black text reads best on this color (5.64:1).
About this color
#6685BC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.091 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.020 away. Black text reads best on it, at 5.64:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 5.64:1 |
| White text | 3.71:1 |
Values
| HEX | #6685BC |
| RGB | rgb(102, 133, 188) |
| HSL | hsl(218, 39%, 57%) |
| OKLCH | oklch(61.6% 0.091 261.5) |
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 #6685BC | 3.71:1 | AA large text | Lc -70.2 | Content text, not long reading |
| Black text on #6685BC | 5.64:1 | AA | Lc 39.4 | Non-text elements, placeholder text |
| #6685BC text on white | 3.71:1 | AA large text | Lc 64.7 | Content text, not long reading |
| #6685BC text on black | 5.64:1 | AA | Lc -37.0 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D0DAEA
oklch(88.6% 0.025 259.8)
-
Step 300
300
#B1C1DE
oklch(80.8% 0.045 262.4)
-
Step 400
400
#88A1CE
oklch(70.6% 0.072 262)
-
Step 500
500 (this color)
#6685BC
oklch(61.6% 0.091 261.5)
-
Step 600
600
#5273AD
oklch(55.6% 0.098 261.1)
-
Step 700
700
#436095
oklch(49.1% 0.092 261.7)
-
Step 800
800
#374F79
oklch(42.8% 0.076 261.1)
-
Step 900
900
#304161
oklch(37.6% 0.059 262.4)
-
Step 950
950
#1C2639
oklch(26.9% 0.038 262.7)
#6685BC 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) | #7189BE | 0.019 |
| Deuteranopia (no green cones) | #6781BB | 0.011 |
| Tritanopia (no blue cones) | #459198 | 0.082 |
| Achromatopsia (no color) | #848484 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6685BC
#6685BC
oklch(61.6% 0.091 261.5)
- #A17F40
#A17F40
oklch(61.6% 0.091 81.1)
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 #6685BC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.020
- Dusty Blue #5A86AD ΔE 0.029
- Off Blue #5684AE ΔE 0.030
- Cool Blue #4984B8 ΔE 0.033
- Steel Blue #4682B4 ΔE 0.039
- Silver Lake Blue #778DA9 ΔE 0.047
- Blue Grey #758DA3 ΔE 0.054
- Lavender Gray #7E7F9A ΔE 0.056
Use #6685BC 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.