#356F9A
Closest named color: Muted Blue (#3B719F). oklch(52.2% 0.091 243.3), rgb(53, 111, 154).
Aa
White text reads best on this color (5.39:1).
About this color
#356F9A is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.091 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.011 away. White text reads best on it, at 5.39:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 3.89:1 |
| White text | 5.39:1 |
Values
| HEX | #356F9A |
| RGB | rgb(53, 111, 154) |
| HSL | hsl(206, 49%, 41%) |
| OKLCH | oklch(52.2% 0.091 243.3) |
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 #356F9A | 5.39:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #356F9A | 3.89:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #356F9A text on white | 5.39:1 | AA | Lc 76.7 | Fine for body text |
| #356F9A text on black | 3.89:1 | AA large text | Lc -25.1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDBE8
oklch(88.4% 0.024 244.2)
-
Step 300
300
#A9C5DB
oklch(81% 0.043 241.8)
-
Step 400
400
#7AA6CA
oklch(70.7% 0.071 243.7)
-
Step 500
500
#5690BC
oklch(63.2% 0.09 242.7)
-
Step 600
600
#3A79A8
oklch(55.6% 0.098 243.5)
-
Step 700
700 (this color)
#356F9A
oklch(52.2% 0.091 243.3)
-
Step 800
800
#255375
oklch(42.6% 0.076 243.3)
-
Step 900
900
#24455E
oklch(37.7% 0.058 243)
-
Step 950
950
#152837
oklch(26.8% 0.038 243.7)
#356F9A 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) | #5C709C | 0.044 |
| Deuteranopia (no green cones) | #4E6699 | 0.034 |
| Tritanopia (no blue cones) | #00797E | 0.067 |
| Achromatopsia (no color) | #6A6A6A | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #356F9A
#356F9A
oklch(52.2% 0.091 243.3)
- #8E5D2C
#8E5D2C
oklch(52.2% 0.091 63.4)
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 #356F9A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.011
- Ocean Blue #03719C ΔE 0.023
- Flat Blue #3C73A8 ΔE 0.025
- Dull Blue #49759C ΔE 0.028
- Sea Blue #047495 ΔE 0.029
- Metallic Blue #4F738E ΔE 0.036
- Denim #3B638C ΔE 0.037
- French Blue #436BAD ΔE 0.038
Use #356F9A 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.