#3992C8
Closest named color: Cool Blue (#4984B8). oklch(63.1% 0.117 239.3), rgb(57, 146, 200).
Aa
Black text reads best on this color (6.11:1).
About this color
#3992C8 is a medium-light, moderately saturated blue. In OKLCH its lightness is 63%, its chroma 0.117 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.041 away. Black text reads best on it, at 6.11:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 6.11:1 |
| White text | 3.43:1 |
Values
| HEX | #3992C8 |
| RGB | rgb(57, 146, 200) |
| HSL | hsl(203, 57%, 50%) |
| OKLCH | oklch(63.1% 0.117 239.3) |
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 #3992C8 | 3.43:1 | AA large text | Lc -67.0 | Content text, not long reading |
| Black text on #3992C8 | 6.11:1 | AA | Lc 42.5 | Non-text elements, placeholder text |
| #3992C8 text on white | 3.43:1 | AA large text | Lc 61.5 | Content text, not long reading |
| #3992C8 text on black | 6.11:1 | AA | Lc -40.2 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF4
oklch(93.6% 0.017 236.7)
-
Step 200
200
#C7DDEC
oklch(88.6% 0.031 237.6)
-
Step 300
300
#9FC6E2
oklch(80.8% 0.057 239.6)
-
Step 400
400
#69A9D4
oklch(70.8% 0.091 239.3)
-
Step 500
500 (this color)
#3992C8
oklch(63.1% 0.117 239.3)
-
Step 600
600
#007BB4
oklch(55.5% 0.126 239.3)
-
Step 700
700
#006898
oklch(49.2% 0.11 238.7)
-
Step 800
800
#00557E
oklch(42.8% 0.097 239.2)
-
Step 900
900
#104665
oklch(37.6% 0.076 239.3)
-
Step 950
950
#0C293B
oklch(26.9% 0.048 239.4)
#3992C8 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) | #7992CA | 0.063 |
| Deuteranopia (no green cones) | #6584C7 | 0.051 |
| Tritanopia (no blue cones) | #00A0A5 | 0.079 |
| Achromatopsia (no color) | #8A8A8A | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3992C8
#3992C8
oklch(63.1% 0.117 239.3)
- #BD7639
#BD7639
oklch(63% 0.117 58.7)
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 #3992C8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.041
- Water Blue #0E87CC ΔE 0.041
- Faded Blue #658CBB ΔE 0.041
- Blue NCS #118AB2 ΔE 0.045
- Steel Blue #4682B4 ΔE 0.048
- Dark Sky Blue #448EE4 ΔE 0.048
- Dusty Blue #5A86AD ΔE 0.049
- Off Blue #5684AE ΔE 0.050
Use #3992C8 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.