#336CA4
Closest named color: Muted Blue (#3B719F). oklch(52% 0.107 250.3), rgb(51, 108, 164).
Aa
White text reads best on this color (5.49:1).
About this color
#336CA4 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.107 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.020 away. White text reads best on it, at 5.49:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 3.82:1 |
| White text | 5.49:1 |
Values
| HEX | #336CA4 |
| RGB | rgb(51, 108, 164) |
| HSL | hsl(210, 53%, 42%) |
| OKLCH | oklch(52% 0.107 250.3) |
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 #336CA4 | 5.49:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #336CA4 | 3.82:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #336CA4 text on white | 5.49:1 | AA | Lc 77.2 | Fine for body text |
| #336CA4 text on black | 3.82:1 | AA large text | Lc -24.6 | 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
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CBDBEC
oklch(88.5% 0.029 249.8)
-
Step 300
300
#A8C4E2
oklch(81% 0.052 250.3)
-
Step 400
400
#79A5D3
oklch(70.8% 0.083 250.2)
-
Step 500
500
#558EC7
oklch(63.2% 0.105 249.8)
-
Step 600
600
#3877B4
oklch(55.7% 0.115 250)
-
Step 700
700 (this color)
#336CA4
oklch(52% 0.107 250.3)
-
Step 800
800
#24517E
oklch(42.6% 0.09 250.8)
-
Step 900
900
#234465
oklch(37.8% 0.069 250.1)
-
Step 950
950
#15283B
oklch(27.1% 0.044 249.7)
#336CA4 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) | #536FA6 | 0.036 |
| Deuteranopia (no green cones) | #4364A3 | 0.025 |
| Tritanopia (no blue cones) | #007980 | 0.082 |
| Achromatopsia (no color) | #696969 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #336CA4
#336CA4
oklch(52% 0.107 250.3)
- #8F5C0E
#8F5C0E
oklch(51.9% 0.107 70.3)
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 #336CA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.020
- French Blue #436BAD ΔE 0.022
- Flat Blue #3C73A8 ΔE 0.023
- Mid Blue #276AB3 ΔE 0.027
- Ocean Blue #03719C ΔE 0.031
- Peacock Blue #016795 ΔE 0.040
- Dull Blue #49759C ΔE 0.040
- Nice Blue #107AB0 ΔE 0.041
Use #336CA4 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.