#306197
Closest named color: Denim Blue (#3B5B92). oklch(48.5% 0.102 252.6), rgb(48, 97, 151).
Aa
White text reads best on this color (6.39:1).
About this color
#306197 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.102 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.019 away. White text reads best on it, at 6.39:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.28:1 |
| White text | 6.39:1 |
Values
| HEX | #306197 |
| RGB | rgb(48, 97, 151) |
| HSL | hsl(211, 52%, 39%) |
| OKLCH | oklch(48.5% 0.102 252.6) |
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 #306197 | 6.39:1 | AA | Lc -86.7 | Fine for body text |
| Black text on #306197 | 3.28:1 | AA large text | Lc 22.5 | Dividers and decoration only |
| #306197 text on white | 6.39:1 | AA | Lc 81.6 | Fine for body text |
| #306197 text on black | 3.28:1 | AA large text | Lc -20.3 | Dividers and decoration only |
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 700.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CDDBEB
oklch(88.6% 0.027 251.7)
-
Step 300
300
#AAC3E0
oklch(80.8% 0.049 252.3)
-
Step 400
400
#7DA4D1
oklch(70.7% 0.079 252.5)
-
Step 500
500
#5B8DC5
oklch(63.2% 0.101 252.2)
-
Step 600
600
#4076B2
oklch(55.7% 0.11 252.6)
-
Step 700
700 (this color)
#306197
oklch(48.5% 0.102 252.6)
-
Step 800
800
#2A517C
oklch(42.8% 0.085 252.4)
-
Step 900
900
#264364
oklch(37.6% 0.067 252.8)
-
Step 950
950
#17283A
oklch(27.1% 0.041 250.8)
#306197 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) | #496499 | 0.030 |
| Deuteranopia (no green cones) | #3B5A96 | 0.021 |
| Tritanopia (no blue cones) | #006E75 | 0.081 |
| Achromatopsia (no color) | #5F5F5F | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #306197
#306197
oklch(48.5% 0.102 252.6)
- #825403
#825403
oklch(48.5% 0.103 72.4)
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 #306197, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.019
- Denim #3B638C ΔE 0.023
- Dusky Blue #475F94 ΔE 0.024
- Peacock Blue #016795 ΔE 0.028
- Light Navy Blue #2E5A88 ΔE 0.029
- Dusk Blue #26538D ΔE 0.044
- Mid Blue #276AB3 ΔE 0.047
- Ocean Blue #03719C ΔE 0.047
Use #306197 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.