#658FBC
Closest named color: Faded Blue (#658CBB). oklch(63.7% 0.082 250.9), rgb(101, 143, 188).
Aa
Black text reads best on this color (6.20:1).
About this color
#658FBC is a medium-light, moderately saturated blue. In OKLCH its lightness is 64%, its chroma 0.082 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.008 away. Black text reads best on it, at 6.20:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.20:1 |
| White text | 3.38:1 |
Values
| HEX | #658FBC |
| RGB | rgb(101, 143, 188) |
| HSL | hsl(211, 39%, 57%) |
| OKLCH | oklch(63.7% 0.082 250.9) |
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 #658FBC | 3.38:1 | AA large text | Lc -66.7 | Content text, not long reading |
| Black text on #658FBC | 6.20:1 | AA | Lc 42.9 | Non-text elements, placeholder text |
| #658FBC text on white | 3.38:1 | AA large text | Lc 61.2 | Content text, not long reading |
| #658FBC text on black | 6.20:1 | AA | Lc -40.5 | 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
#CFDBE8
oklch(88.6% 0.022 250.2)
-
Step 300
300
#AEC3DA
oklch(80.9% 0.04 250.7)
-
Step 400
400
#83A4C8
oklch(70.7% 0.064 250.9)
-
Step 500
500 (this color)
#658FBC
oklch(63.7% 0.082 250.9)
-
Step 600
600
#4977A6
oklch(55.7% 0.089 250.2)
-
Step 700
700
#3B638E
oklch(49% 0.083 251.5)
-
Step 800
800
#315174
oklch(42.7% 0.07 251.7)
-
Step 900
900
#2B445D
oklch(37.8% 0.053 249.4)
-
Step 950
950
#1A2837
oklch(27.1% 0.034 250.8)
#658FBC 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) | #7D90BE | 0.030 |
| Deuteranopia (no green cones) | #7288BB | 0.023 |
| Tritanopia (no blue cones) | #41999E | 0.071 |
| Achromatopsia (no color) | #8C8C8C | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #658FBC
#658FBC
oklch(63.7% 0.082 250.9)
- #AB8352
#AB8352
oklch(63.8% 0.082 71.1)
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 #658FBC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.008
- Silver Lake Blue #778DA9 ΔE 0.033
- Dusty Blue #5A86AD ΔE 0.035
- Blue Grey #758DA3 ΔE 0.040
- Off Blue #5684AE ΔE 0.040
- Cool Blue #4984B8 ΔE 0.046
- Steel Blue #4682B4 ΔE 0.053
- Light Slate Gray #778899 ΔE 0.053
Use #658FBC 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.