#658FBB
Closest named color: Faded Blue (#658CBB). oklch(63.7% 0.081 250.3), rgb(101, 143, 187).
Aa
Black text reads best on this color (6.19:1).
About this color
#658FBB is a medium-light, moderately saturated blue. In OKLCH its lightness is 64%, its chroma 0.081 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.009 away. Black text reads best on it, at 6.19:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.19:1 |
| White text | 3.38:1 |
Values
| HEX | #658FBB |
| RGB | rgb(101, 143, 187) |
| HSL | hsl(211, 39%, 56%) |
| OKLCH | oklch(63.7% 0.081 250.3) |
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 #658FBB | 3.38:1 | AA large text | Lc -66.7 | Content text, not long reading |
| Black text on #658FBB | 6.19:1 | AA | Lc 42.8 | Non-text elements, placeholder text |
| #658FBB text on white | 3.38:1 | AA large text | Lc 61.3 | Content text, not long reading |
| #658FBB text on black | 6.19:1 | AA | Lc -40.4 | 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
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CFDBE8
oklch(88.6% 0.022 250.2)
-
Step 300
300
#AEC3DA
oklch(80.9% 0.04 250.7)
-
Step 400
400
#83A4C7
oklch(70.7% 0.063 250.2)
-
Step 500
500 (this color)
#658FBB
oklch(63.7% 0.081 250.3)
-
Step 600
600
#4A77A5
oklch(55.7% 0.088 250.2)
-
Step 700
700
#3B648E
oklch(49.2% 0.082 250.4)
-
Step 800
800
#315173
oklch(42.6% 0.068 251.1)
-
Step 900
900
#2B445D
oklch(37.8% 0.053 249.4)
-
Step 950
950
#1A2836
oklch(27.1% 0.032 249.1)
#658FBB 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) | #7E90BD | 0.032 |
| Deuteranopia (no green cones) | #7388BA | 0.024 |
| Tritanopia (no blue cones) | #41999E | 0.070 |
| Achromatopsia (no color) | #8B8B8B | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #658FBB
#658FBB
oklch(63.7% 0.081 250.3)
- #AB8353
#AB8353
oklch(63.8% 0.081 70.6)
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 #658FBB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.009
- Silver Lake Blue #778DA9 ΔE 0.032
- Dusty Blue #5A86AD ΔE 0.034
- Blue Grey #758DA3 ΔE 0.038
- Off Blue #5684AE ΔE 0.040
- Cool Blue #4984B8 ΔE 0.046
- Light Slate Gray #778899 ΔE 0.052
- Steel Blue #4682B4 ΔE 0.053
Use #658FBB 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.