#738CA7
Closest named color: Silver Lake Blue (#778DA9). oklch(63% 0.05 250.6), rgb(115, 140, 167).
Aa
Black text reads best on this color (6.03:1).
About this color
#738CA7 is a medium-light, muted blue. In OKLCH its lightness is 63%, its chroma 0.050 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Silver Lake Blue (#778DA9), ΔE 0.007 away. Black text reads best on it, at 6.03:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Silver Lake Blue (#778DA9) |
| Black text | 6.03:1 |
| White text | 3.47:1 |
Values
| HEX | #738CA7 |
| RGB | rgb(115, 140, 167) |
| HSL | hsl(211, 23%, 55%) |
| OKLCH | oklch(63% 0.05 250.6) |
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 #738CA7 | 3.47:1 | AA large text | Lc -67.8 | Content text, not long reading |
| Black text on #738CA7 | 6.03:1 | AA | Lc 41.8 | Non-text elements, placeholder text |
| #738CA7 text on white | 3.47:1 | AA large text | Lc 62.3 | Content text, not long reading |
| #738CA7 text on black | 6.03:1 | 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
#F4F6F8
oklch(97.2% 0.003 247.9)
-
Step 100
100
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D3DAE2
oklch(88.5% 0.013 251.6)
-
Step 300
300
#B5C2D0
oklch(80.8% 0.024 250.1)
-
Step 400
400
#8FA3B9
oklch(70.7% 0.039 250.9)
-
Step 500
500 (this color)
#738CA7
oklch(63% 0.05 250.6)
-
Step 600
600
#5B7692
oklch(55.6% 0.054 249.7)
-
Step 700
700
#4B637D
oklch(49.1% 0.051 250.9)
-
Step 800
800
#3E5165
oklch(42.7% 0.041 250.1)
-
Step 900
900
#354353
oklch(37.7% 0.033 252.1)
-
Step 950
950
#1F2730
oklch(26.9% 0.02 251.6)
#738CA7 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) | #828CA8 | 0.020 |
| Deuteranopia (no green cones) | #7C87A6 | 0.017 |
| Tritanopia (no blue cones) | #639295 | 0.042 |
| Achromatopsia (no color) | #898989 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #738CA7
#738CA7
oklch(63% 0.05 250.6)
- #9D8568
#9D8568
oklch(63.1% 0.051 72)
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 #738CA7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Silver Lake Blue #778DA9 ΔE 0.007
- Blue Grey #758DA3 ΔE 0.008
- Light Slate Gray #778899 ΔE 0.021
- Steel #738595 ΔE 0.029
- Faded Blue #658CBB ΔE 0.034
- Lavender Gray #7E7F9A ΔE 0.037
- Dusty Blue #5A86AD ΔE 0.038
- Slate Gray #708090 ΔE 0.042
Use #738CA7 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.