#3397BA
Closest named color: Blue NCS (#118AB2). oklch(63.4% 0.104 225.6), rgb(51, 151, 186).
Aa
Black text reads best on this color (6.27:1).
About this color
#3397BA is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 63%, its chroma 0.104 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.043 away. Black text reads best on it, at 6.27:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 6.27:1 |
| White text | 3.34:1 |
Values
| HEX | #3397BA |
| RGB | rgb(51, 151, 186) |
| HSL | hsl(196, 57%, 46%) |
| OKLCH | oklch(63.4% 0.104 225.6) |
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 #3397BA | 3.34:1 | AA large text | Lc -66.0 | Content text, not long reading |
| Black text on #3397BA | 6.27:1 | AA | Lc 43.5 | Non-text elements, placeholder text |
| #3397BA text on white | 3.34:1 | AA large text | Lc 60.6 | Content text, not long reading |
| #3397BA text on black | 6.27:1 | AA | Lc -41.1 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF1
oklch(93.6% 0.015 224.5)
-
Step 200
200
#C6DDE7
oklch(88.4% 0.028 225.7)
-
Step 300
300
#9EC8DA
oklch(80.9% 0.051 225.9)
-
Step 400
400
#66ABC7
oklch(70.6% 0.081 226.1)
-
Step 500
500 (this color)
#3397BA
oklch(63.4% 0.104 225.6)
-
Step 600
600
#007FA2
oklch(55.5% 0.106 225.7)
-
Step 700
700
#006B89
oklch(49.1% 0.094 225.7)
-
Step 800
800
#005871
oklch(42.8% 0.081 225.4)
-
Step 900
900
#09495D
oklch(37.8% 0.068 225.2)
-
Step 950
950
#0A2B36
oklch(27.1% 0.042 224)
#3397BA 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) | #8494BC | 0.079 |
| Deuteranopia (no green cones) | #7187BA | 0.068 |
| Tritanopia (no blue cones) | #00A1A2 | 0.056 |
| Achromatopsia (no color) | #8C8C8C | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3397BA
#3397BA
oklch(63.4% 0.104 225.6)
- #BE7553
#BE7553
oklch(63.3% 0.104 45.4)
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 #3397BA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.043
- Faded Blue #658CBB ΔE 0.049
- Dusty Blue #5A86AD ΔE 0.052
- Cool Blue #4984B8 ΔE 0.054
- Off Blue #5684AE ΔE 0.055
- Steel Blue #4682B4 ΔE 0.058
- Teal Green #0A9396 ΔE 0.059
- Cadet Blue #5F9EA0 ΔE 0.060
Use #3397BA 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.