#6491C1
Closest named color: Faded Blue (#658CBB). oklch(64.4% 0.088 250.8), rgb(100, 145, 193).
Aa
Black text reads best on this color (6.36:1).
About this color
#6491C1 is a medium-light, moderately saturated blue. In OKLCH its lightness is 64%, its chroma 0.088 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.015 away. Black text reads best on it, at 6.36:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.36:1 |
| White text | 3.30:1 |
Values
| HEX | #6491C1 |
| RGB | rgb(100, 145, 193) |
| HSL | hsl(211, 43%, 57%) |
| OKLCH | oklch(64.4% 0.088 250.8) |
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 #6491C1 | 3.30:1 | AA large text | Lc -65.7 | Content text, not long reading |
| Black text on #6491C1 | 6.36:1 | AA | Lc 43.8 | Non-text elements, placeholder text |
| #6491C1 text on white | 3.30:1 | AA large text | Lc 60.3 | Content text, not long reading |
| #6491C1 text on black | 6.36:1 | AA | Lc -41.4 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CEDBE9
oklch(88.6% 0.024 250.1)
-
Step 300
300
#ADC3DC
oklch(80.9% 0.043 251.7)
-
Step 400
400
#81A4CA
oklch(70.7% 0.068 250.9)
-
Step 500
500 (this color)
#6491C1
oklch(64.4% 0.088 250.8)
-
Step 600
600
#4677A9
oklch(55.7% 0.095 250.3)
-
Step 700
700
#376491
oklch(49.2% 0.088 250)
-
Step 800
800
#2E5176
oklch(42.6% 0.074 251.2)
-
Step 900
900
#2A445F
oklch(37.8% 0.056 250.4)
-
Step 950
950
#192838
oklch(27.1% 0.036 250.8)
#6491C1 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) | #7E93C3 | 0.033 |
| Deuteranopia (no green cones) | #7289C0 | 0.026 |
| Tritanopia (no blue cones) | #3A9CA1 | 0.076 |
| Achromatopsia (no color) | #8D8D8D | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6491C1
#6491C1
oklch(64.4% 0.088 250.8)
- #AF844F
#AF844F
oklch(64.4% 0.088 71)
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 #6491C1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.015
- Silver Lake Blue #778DA9 ΔE 0.039
- Dusty Blue #5A86AD ΔE 0.042
- Blue Grey #758DA3 ΔE 0.046
- Off Blue #5684AE ΔE 0.047
- Cool Blue #4984B8 ΔE 0.050
- Steel Blue #4682B4 ΔE 0.057
- Greyblue #77A1B5 ΔE 0.060
Use #6491C1 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.