#737DCA
Closest named color: Soft Blue (#6488EA). oklch(61.5% 0.117 276.8), rgb(115, 125, 202).
Aa
Black text reads best on this color (5.51:1).
About this color
#737DCA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.117 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.052 away. Black text reads best on it, at 5.51:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 5.51:1 |
| White text | 3.80:1 |
Values
| HEX | #737DCA |
| RGB | rgb(115, 125, 202) |
| HSL | hsl(233, 45%, 62%) |
| OKLCH | oklch(61.5% 0.117 276.8) |
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 #737DCA | 3.80:1 | AA large text | Lc -71.0 | Content text, not long reading |
| Black text on #737DCA | 5.51:1 | AA | Lc 38.6 | Non-text elements, placeholder text |
| #737DCA text on white | 3.80:1 | AA large text | Lc 65.5 | Content text, not long reading |
| #737DCA text on black | 5.51:1 | AA | Lc -36.2 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D3D8EF
oklch(88.5% 0.032 276)
-
Step 300
300
#B7BEE6
oklch(80.9% 0.057 277.3)
-
Step 400
400
#929CDA
oklch(70.8% 0.091 276.7)
-
Step 500
500 (this color)
#737DCA
oklch(61.5% 0.117 276.8)
-
Step 600
600
#616ABC
oklch(55.5% 0.127 276.7)
-
Step 700
700
#5158A2
oklch(49.1% 0.117 277.1)
-
Step 800
800
#424884
oklch(42.7% 0.099 277)
-
Step 900
900
#373D69
oklch(37.6% 0.075 276.3)
-
Step 950
950
#20243E
oklch(27% 0.049 276)
#737DCA 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) | #6286CD | 0.029 |
| Deuteranopia (no green cones) | #5B7FC8 | 0.030 |
| Tritanopia (no blue cones) | #568D9A | 0.104 |
| Achromatopsia (no color) | #838383 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #737DCA
#737DCA
oklch(61.5% 0.117 276.8)
- #99841E
#99841E
oklch(61.5% 0.117 96.7)
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 #737DCA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.052
- Faded Blue #658CBB ΔE 0.054
- Cool Blue #4984B8 ΔE 0.061
- Deep Lilac #966EBD ΔE 0.062
- Off Blue #5684AE ΔE 0.063
- Medium Purple #9370DB ΔE 0.064
- Dusty Blue #5A86AD ΔE 0.065
- Steel Blue #4682B4 ΔE 0.066
Use #737DCA 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.