#718FA3
Closest named color: Blue Grey (#758DA3). oklch(63.4% 0.045 237.6), rgb(113, 143, 163).
Aa
Black text reads best on this color (6.15:1).
About this color
#718FA3 is a medium-light, muted blue. In OKLCH its lightness is 63%, its chroma 0.045 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Grey (#758DA3), ΔE 0.007 away. Black text reads best on it, at 6.15:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Blue Grey (#758DA3) |
| Black text | 6.15:1 |
| White text | 3.40:1 |
Values
| HEX | #718FA3 |
| RGB | rgb(113, 143, 163) |
| HSL | hsl(204, 21%, 54%) |
| OKLCH | oklch(63.4% 0.045 237.6) |
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 #718FA3 | 3.40:1 | AA large text | Lc -67.0 | Content text, not long reading |
| Black text on #718FA3 | 6.15:1 | AA | Lc 42.5 | Non-text elements, placeholder text |
| #718FA3 text on white | 3.40:1 | AA large text | Lc 61.6 | Content text, not long reading |
| #718FA3 text on black | 6.15:1 | AA | Lc -40.1 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D2DAE0
oklch(88.4% 0.012 239.9)
-
Step 300
300
#B4C3CD
oklch(80.9% 0.022 236.8)
-
Step 400
400
#8DA4B4
oklch(70.6% 0.035 238.4)
-
Step 500
500 (this color)
#718FA3
oklch(63.4% 0.045 237.6)
-
Step 600
600
#58788D
oklch(55.6% 0.049 237.6)
-
Step 700
700
#486578
oklch(49.2% 0.046 237.6)
-
Step 800
800
#3B5261
oklch(42.6% 0.038 237.4)
-
Step 900
900
#334450
oklch(37.7% 0.03 239.3)
-
Step 950
950
#1E282F
oklch(27% 0.019 238.9)
#718FA3 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) | #868EA4 | 0.028 |
| Deuteranopia (no green cones) | #7F89A3 | 0.024 |
| Tritanopia (no blue cones) | #619495 | 0.036 |
| Achromatopsia (no color) | #8B8B8B | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #718FA3
#718FA3
oklch(63.4% 0.045 237.6)
- #A08470
#A08470
oklch(63.4% 0.045 57.3)
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 #718FA3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Grey #758DA3 ΔE 0.007
- Silver Lake Blue #778DA9 ΔE 0.015
- Light Slate Gray #778899 ΔE 0.021
- Steel #738595 ΔE 0.030
- Faded Blue #658CBB ΔE 0.042
- Lavender Gray #7E7F9A ΔE 0.045
- Dusty Blue #5A86AD ΔE 0.045
- Slate Gray #708090 ΔE 0.045
Use #718FA3 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.