#618DBD
Closest named color: Faded Blue (#658CBB). oklch(63.1% 0.087 251.4), rgb(97, 141, 189).
Aa
Black text reads best on this color (6.05:1).
About this color
#618DBD is a medium-light, moderately saturated blue. In OKLCH its lightness is 63%, its chroma 0.087 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.005 away. Black text reads best on it, at 6.05:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.05:1 |
| White text | 3.46:1 |
Values
| HEX | #618DBD |
| RGB | rgb(97, 141, 189) |
| HSL | hsl(211, 41%, 56%) |
| OKLCH | oklch(63.1% 0.087 251.4) |
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 #618DBD | 3.46:1 | AA large text | Lc -67.6 | Content text, not long reading |
| Black text on #618DBD | 6.05:1 | AA | Lc 41.9 | Non-text elements, placeholder text |
| #618DBD text on white | 3.46:1 | AA large text | Lc 62.1 | Content text, not long reading |
| #618DBD text on black | 6.05:1 | AA | Lc -39.5 | 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
#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)
#618DBD
oklch(63.1% 0.087 251.4)
-
Step 600
600
#4776A9
oklch(55.5% 0.095 251.7)
-
Step 700
700
#386391
oklch(49% 0.089 251.5)
-
Step 800
800
#2F5176
oklch(42.7% 0.074 251.8)
-
Step 900
900
#2A435F
oklch(37.6% 0.057 252.1)
-
Step 950
950
#192838
oklch(27.1% 0.036 250.8)
#618DBD 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) | #7A8FBF | 0.032 |
| Deuteranopia (no green cones) | #6E86BC | 0.023 |
| Tritanopia (no blue cones) | #37989D | 0.077 |
| Achromatopsia (no color) | #8A8A8A | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #618DBD
#618DBD
oklch(63.1% 0.087 251.4)
- #AB804B
#AB804B
oklch(63% 0.088 70.9)
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 #618DBD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.005
- Dusty Blue #5A86AD ΔE 0.030
- Off Blue #5684AE ΔE 0.035
- Cool Blue #4984B8 ΔE 0.038
- Silver Lake Blue #778DA9 ΔE 0.039
- Blue Grey #758DA3 ΔE 0.045
- Steel Blue #4682B4 ΔE 0.046
- Light Slate Gray #778899 ΔE 0.056
Use #618DBD 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.