#618FAD
Closest named color: Blue Grey (#758DA3). oklch(62.8% 0.068 237.9), rgb(97, 143, 173).
Aa
Black text reads best on this color (6.04:1).
About this color
#618FAD is a medium-light, muted blue. In OKLCH its lightness is 63%, its chroma 0.068 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Grey (#758DA3), ΔE 0.026 away. Black text reads best on it, at 6.04:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Blue Grey (#758DA3) |
| Black text | 6.04:1 |
| White text | 3.47:1 |
Values
| HEX | #618FAD |
| RGB | rgb(97, 143, 173) |
| HSL | hsl(204, 32%, 53%) |
| OKLCH | oklch(62.8% 0.068 237.9) |
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 #618FAD | 3.47:1 | AA large text | Lc -67.7 | Content text, not long reading |
| Black text on #618FAD | 6.04:1 | AA | Lc 41.8 | Non-text elements, placeholder text |
| #618FAD text on white | 3.47:1 | AA large text | Lc 62.2 | Content text, not long reading |
| #618FAD text on black | 6.04:1 | AA | Lc -39.4 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CEDBE4
oklch(88.4% 0.019 237.8)
-
Step 300
300
#AEC4D4
oklch(80.9% 0.033 239.5)
-
Step 400
400
#82A6BE
oklch(70.7% 0.053 237.7)
-
Step 500
500 (this color)
#618FAD
oklch(62.8% 0.068 237.9)
-
Step 600
600
#477A99
oklch(55.7% 0.073 236.8)
-
Step 700
700
#396683
oklch(49.1% 0.068 238.5)
-
Step 800
800
#2F536A
oklch(42.5% 0.057 238.1)
-
Step 900
900
#2A4556
oklch(37.6% 0.044 237.2)
-
Step 950
950
#192933
oklch(27.1% 0.028 236.7)
#618FAD 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) | #828EAE | 0.041 |
| Deuteranopia (no green cones) | #7786AD | 0.035 |
| Tritanopia (no blue cones) | #429799 | 0.053 |
| Achromatopsia (no color) | #898989 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #618FAD
#618FAD
oklch(62.8% 0.068 237.9)
- #A87F60
#A87F60
oklch(62.9% 0.067 58.2)
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 #618FAD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Grey #758DA3 ΔE 0.026
- Silver Lake Blue #778DA9 ΔE 0.026
- Faded Blue #658CBB ΔE 0.026
- Dusty Blue #5A86AD ΔE 0.028
- Off Blue #5684AE ΔE 0.036
- Light Slate Gray #778899 ΔE 0.037
- Steel #738595 ΔE 0.041
- Cool Blue #4984B8 ΔE 0.049
Use #618FAD 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.